56861281886 has 8 divisors (see below), whose sum is σ = 85293699624. Its totient is φ = 28430048680.

The previous prime is 56861281859. The next prime is 56861281909. The reversal of 56861281886 is 68818216865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164405 + ... + 375168.

It is an arithmetic number, because the mean of its divisors is an integer number (10661712453).

Almost surely, 2^56861281886 is an apocalyptic number.

56861281886 is a deficient number, since it is larger than the sum of its proper divisors (28432417738).

56861281886 is a wasteful number, since it uses less digits than its factorization.

56861281886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592266.

The product of its digits is 8847360, while the sum is 59.

The spelling of 56861281886 in words is "fifty-six billion, eight hundred sixty-one million, two hundred eighty-one thousand, eight hundred eighty-six".