125309837696 has 64 divisors (see below), whose sum is σ = 255883723920. Its totient is φ = 61093036032.

The previous prime is 125309837693. The next prime is 125309837707. The reversal of 125309837696 is 696738903521.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125309837693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244676 + ... + 3283068.

Almost surely, 2^125309837696 is an apocalyptic number.

125309837696 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 125309837696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127941861960).

125309837696 is an abundant number, since it is smaller than the sum of its proper divisors (130573886224).

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

125309837696 is an equidigital number, since it uses as much as digits as its factorization.

125309837696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39043 (or 39031 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 125309837696 in words is "one hundred twenty-five billion, three hundred nine million, eight hundred thirty-seven thousand, six hundred ninety-six".