125987185104 has 80 divisors (see below), whose sum is σ = 356737833984. Its totient is φ = 37996963200.

The previous prime is 125987185073. The next prime is 125987185127. The reversal of 125987185104 is 401581789521.

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 15 ways as a sum of consecutive naturals, for example, 454024 + ... + 676839.

Almost surely, 2^125987185104 is an apocalyptic number.

It is an amenable number.

125987185104 is an abundant number, since it is smaller than the sum of its proper divisors (230750648880).

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

125987185104 is a wasteful number, since it uses less digits than its factorization.

125987185104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131096 (or 1131090 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 51.

The spelling of 125987185104 in words is "one hundred twenty-five billion, nine hundred eighty-seven million, one hundred eighty-five thousand, one hundred four".