125277439656 has 64 divisors (see below), whose sum is σ = 314288916480. Its totient is φ = 41613351680.

The previous prime is 125277439631. The next prime is 125277439663. The reversal of 125277439656 is 656934772521.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 125277439596 and 125277439605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8810905 + ... + 8825111.

It is an arithmetic number, because the mean of its divisors is an integer number (4910764320).

Almost surely, 2^125277439656 is an apocalyptic number.

It is an amenable number.

125277439656 is an abundant number, since it is smaller than the sum of its proper divisors (189011476824).

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

125277439656 is a wasteful number, since it uses less digits than its factorization.

125277439656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474 (or 15470 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 57.

The spelling of 125277439656 in words is "one hundred twenty-five billion, two hundred seventy-seven million, four hundred thirty-nine thousand, six hundred fifty-six".