56856668410 has 64 divisors (see below), whose sum is σ = 105724634400. Its totient is φ = 22001172480.

The previous prime is 56856668333. The next prime is 56856668443. The reversal of 56856668410 is 1486665865.

It can be written as a sum of positive squares in 16 ways, for example, as 22135190841 + 34721477569 = 148779^2 + 186337^2 .

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28187722 + ... + 28189738.

Almost surely, 2^56856668410 is an apocalyptic number.

56856668410 is a deficient number, since it is larger than the sum of its proper divisors (48867965990).

56856668410 is a wasteful number, since it uses less digits than its factorization.

56856668410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611.

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 56856668410 in words is "fifty-six billion, eight hundred fifty-six million, six hundred sixty-eight thousand, four hundred ten".