56893972947 has 64 divisors (see below), whose sum is σ = 93542169600. Its totient is φ = 30021488640.

The previous prime is 56893972943. The next prime is 56893972997. The reversal of 56893972947 is 74927939865.

It is not a de Polignac number, because 56893972947 - 2² = 56893972943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56893972943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4155429 + ... + 4169097.

It is an arithmetic number, because the mean of its divisors is an integer number (1461596400).

Almost surely, 2^56893972947 is an apocalyptic number.

56893972947 is a deficient number, since it is larger than the sum of its proper divisors (36648196653).

56893972947 is a wasteful number, since it uses less digits than its factorization.

56893972947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13916.

The product of its digits is 205752960, while the sum is 69.

The spelling of 56893972947 in words is "fifty-six billion, eight hundred ninety-three million, nine hundred seventy-two thousand, nine hundred forty-seven".