56890426645 has 64 divisors (see below), whose sum is σ = 79374919680. Its totient is φ = 38767104000.

The previous prime is 56890426631. The next prime is 56890426673. The reversal of 56890426645 is 54662409865.

It is not a de Polignac number, because 56890426645 - 2¹⁵ = 56890393877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24197220 + ... + 24199570.

It is an arithmetic number, because the mean of its divisors is an integer number (1240233120).

Almost surely, 2^56890426645 is an apocalyptic number.

It is an amenable number.

56890426645 is a deficient number, since it is larger than the sum of its proper divisors (22484493035).

56890426645 is a wasteful number, since it uses less digits than its factorization.

56890426645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806.

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 56890426645 in words is "fifty-six billion, eight hundred ninety million, four hundred twenty-six thousand, six hundred forty-five".