3125156934978 has 24 divisors (see below), whose sum is σ = 7292032848828. Its totient is φ = 961586749152.

The previous prime is 3125156934859. The next prime is 3125156935001. The reversal of 3125156934978 is 8794396515213.

3125156934978 is a `hidden beast` number, since 3 + 1 + 2 + 5 + 1 + 56 + 93 + 497 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3091523942529 + 33632992449 = 1758273^2 + 183393^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6677685525 + ... + 6677685992.

Almost surely, 2^{3125156934978} is an apocalyptic number.

3125156934978 is an abundant number, since it is smaller than the sum of its proper divisors (4166875913850).

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

3125156934978 is a wasteful number, since it uses less digits than its factorization.

3125156934978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13355371538 (or 13355371535 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 63.

The spelling of 3125156934978 in words is "three trillion, one hundred twenty-five billion, one hundred fifty-six million, nine hundred thirty-four thousand, nine hundred seventy-eight".