56861471361 has 24 divisors (see below), whose sum is σ = 84722415264. Its totient is φ = 33799996800.

The previous prime is 56861471347. The next prime is 56861471369. The reversal of 56861471361 is 16317416865.

It is not a de Polignac number, because 56861471361 - 2²⁷ = 56727253633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56861471361.

It is not an unprimeable number, because it can be changed into a prime (56861471369) 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 23 ways as a sum of consecutive naturals, for example, 1525815 + ... + 1562636.

It is an arithmetic number, because the mean of its divisors is an integer number (3530100636).

Almost surely, 2^56861471361 is an apocalyptic number.

56861471361 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

56861471361 is a deficient number, since it is larger than the sum of its proper divisors (27860943903).

56861471361 is a wasteful number, since it uses less digits than its factorization.

56861471361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088509 (or 3088490 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 56861471361 in words is "fifty-six billion, eight hundred sixty-one million, four hundred seventy-one thousand, three hundred sixty-one".