125687644088 has 32 divisors (see below), whose sum is σ = 236136690720. Its totient is φ = 62717952000.

The previous prime is 125687644087. The next prime is 125687644091. The reversal of 125687644088 is 880446786521.

It is a super-2 number, since 2×125687644088² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125687644087) 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, 16359608 + ... + 16367288.

It is an arithmetic number, because the mean of its divisors is an integer number (7379271585).

Almost surely, 2^125687644088 is an apocalyptic number.

It is an amenable number.

125687644088 is a deficient number, since it is larger than the sum of its proper divisors (110449046632).

125687644088 is a wasteful number, since it uses less digits than its factorization.

125687644088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519 (or 11515 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 125687644088 in words is "one hundred twenty-five billion, six hundred eighty-seven million, six hundred forty-four thousand, eighty-eight".