56821314884 has 12 divisors (see below), whose sum is σ = 99439467708. Its totient is φ = 28410038400.

The previous prime is 56821314883. The next prime is 56821314959. The reversal of 56821314884 is 48841312865.

It can be written as a sum of positive squares in 2 ways, for example, as 49248486400 + 7572828484 = 221920^2 + 87022^2 .

It is not an unprimeable number, because it can be changed into a prime (56821314883) 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 3 ways as a sum of consecutive naturals, for example, 97424 + ... + 350904.

It is an arithmetic number, because the mean of its divisors is an integer number (8286622309).

Almost surely, 2^56821314884 is an apocalyptic number.

It is an amenable number.

56821314884 is a deficient number, since it is larger than the sum of its proper divisors (42618152824).

56821314884 is a wasteful number, since it uses less digits than its factorization.

56821314884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309526 (or 309524 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

The spelling of 56821314884 in words is "fifty-six billion, eight hundred twenty-one million, three hundred fourteen thousand, eight hundred eighty-four".