125737081956 has 36 divisors (see below), whose sum is σ = 317861107200. Its totient is φ = 41908970928.

The previous prime is 125737081949. The next prime is 125737082017. The reversal of 125737081956 is 659180737521.

125737081956 is a `hidden beast` number, since 1 + 2 + 573 + 7 + 0 + 8 + 19 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 331765 + ... + 601283.

It is an arithmetic number, because the mean of its divisors is an integer number (8829475200).

Almost surely, 2^125737081956 is an apocalyptic number.

It is an amenable number.

125737081956 is an abundant number, since it is smaller than the sum of its proper divisors (192124025244).

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

125737081956 is a wasteful number, since it uses less digits than its factorization.

125737081956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282488 (or 282483 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The spelling of 125737081956 in words is "one hundred twenty-five billion, seven hundred thirty-seven million, eighty-one thousand, nine hundred fifty-six".