56006909886 has 16 divisors (see below), whose sum is σ = 112030304400. Its totient is φ = 18666222528.

The previous prime is 56006909873. The next prime is 56006909909. The reversal of 56006909886 is 68890960065.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642471 + ... + 724418.

It is an arithmetic number, because the mean of its divisors is an integer number (7001894025).

Almost surely, 2^56006909886 is an apocalyptic number.

56006909886 is an abundant number, since it is smaller than the sum of its proper divisors (56023394514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56006909886 is a wasteful number, since it uses less digits than its factorization.

56006909886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373723.

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 56006909886 in words is "fifty-six billion, six million, nine hundred nine thousand, eight hundred eighty-six".