diff --git a/libs/common/src/main/java/org/opensearch/common/Numbers.java b/libs/common/src/main/java/org/opensearch/common/Numbers.java
index d5a364a4a934e..fa4018089bdc4 100644
--- a/libs/common/src/main/java/org/opensearch/common/Numbers.java
+++ b/libs/common/src/main/java/org/opensearch/common/Numbers.java
@@ -41,6 +41,9 @@
  * @opensearch.internal
  */
 public final class Numbers {
+
+    public static final BigInteger MAX_SIGNED_LONG = BigInteger.valueOf(Long.MAX_VALUE);
+
     public static final BigInteger MAX_UNSIGNED_LONG_VALUE = BigInteger.ONE.shiftLeft(64).subtract(BigInteger.ONE);
     public static final BigInteger MIN_UNSIGNED_LONG_VALUE = BigInteger.ZERO;
 
diff --git a/server/src/main/java/org/opensearch/index/fielddata/fieldcomparator/UnsignedLongValuesComparatorSource.java b/server/src/main/java/org/opensearch/index/fielddata/fieldcomparator/UnsignedLongValuesComparatorSource.java
index 9db5817450cd0..3e8e513e80747 100644
--- a/server/src/main/java/org/opensearch/index/fielddata/fieldcomparator/UnsignedLongValuesComparatorSource.java
+++ b/server/src/main/java/org/opensearch/index/fielddata/fieldcomparator/UnsignedLongValuesComparatorSource.java
@@ -78,7 +78,7 @@ private NumericDocValues getNumericDocValues(LeafReaderContext context, BigInteg
     public Object missingObject(Object missingValue, boolean reversed) {
         if (sortMissingFirst(missingValue) || sortMissingLast(missingValue)) {
             final boolean min = sortMissingFirst(missingValue) ^ reversed;
-            return min ? Numbers.MIN_UNSIGNED_LONG_VALUE : Numbers.MAX_UNSIGNED_LONG_VALUE;
+            return min ? Numbers.MIN_UNSIGNED_LONG_VALUE : Numbers.MAX_SIGNED_LONG;
         } else {
             if (missingValue instanceof Number) {
                 return Numbers.toUnsignedLongExact((Number) missingValue);