56264640971 has 54 divisors (see below), whose sum is σ = 75974288364. Its totient is φ = 41194944000.

The previous prime is 56264640931. The next prime is 56264641007. The reversal of 56264640971 is 17904646265.

It is not a de Polignac number, because 56264640971 - 2³⁰ = 55190899147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56264640931) by changing a digit.

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 53 ways as a sum of consecutive naturals, for example, 93618071 + ... + 93618671.

It is an arithmetic number, because the mean of its divisors is an integer number (1406931266).

Almost surely, 2^56264640971 is an apocalyptic number.

56264640971 is a deficient number, since it is larger than the sum of its proper divisors (19709647393).

56264640971 is an equidigital number, since it uses as much as digits as its factorization.

56264640971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 56264640971 in words is "fifty-six billion, two hundred sixty-four million, six hundred forty thousand, nine hundred seventy-one".