56812771475 has 12 divisors (see below), whose sum is σ = 71174106024. Its totient is φ = 44981656320.

The previous prime is 56812771447. The next prime is 56812771487. The reversal of 56812771475 is 57417721865.

It is a happy number.

It is not a de Polignac number, because 56812771475 - 2²⁰ = 56811722899 is a prime.

It is a Duffinian number.

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, 11711549 + ... + 11716398.

It is an arithmetic number, because the mean of its divisors is an integer number (5931175502).

Almost surely, 2^56812771475 is an apocalyptic number.

56812771475 is a deficient number, since it is larger than the sum of its proper divisors (14361334549).

56812771475 is a wasteful number, since it uses less digits than its factorization.

56812771475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23428054 (or 23428049 counting only the distinct ones).

The product of its digits is 3292800, while the sum is 53.

The spelling of 56812771475 in words is "fifty-six billion, eight hundred twelve million, seven hundred seventy-one thousand, four hundred seventy-five".