56856367646 has 8 divisors (see below), whose sum is σ = 91844901624. Its totient is φ = 26241400440.

The previous prime is 56856367627. The next prime is 56856367649. The reversal of 56856367646 is 64676365865.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56856367649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093391660 + ... + 1093391711.

It is an arithmetic number, because the mean of its divisors is an integer number (11480612703).

Almost surely, 2^56856367646 is an apocalyptic number.

56856367646 is a deficient number, since it is larger than the sum of its proper divisors (34988533978).

56856367646 is a wasteful number, since it uses less digits than its factorization.

56856367646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186783386.

The product of its digits is 130636800, while the sum is 62.

The spelling of 56856367646 in words is "fifty-six billion, eight hundred fifty-six million, three hundred sixty-seven thousand, six hundred forty-six".