125861657936 has 120 divisors (see below), whose sum is σ = 288962683776. Its totient is φ = 52940321280.

The previous prime is 125861657923. The next prime is 125861657941. The reversal of 125861657936 is 639756168521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14756105 + ... + 14764631.

Almost surely, 2^125861657936 is an apocalyptic number.

125861657936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125861657936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144481341888).

125861657936 is an abundant number, since it is smaller than the sum of its proper divisors (163101025840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125861657936 is a wasteful number, since it uses less digits than its factorization.

125861657936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8897 (or 8884 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 59.

The spelling of 125861657936 in words is "one hundred twenty-five billion, eight hundred sixty-one million, six hundred fifty-seven thousand, nine hundred thirty-six".