56861311863 has 8 divisors (see below), whose sum is σ = 76084888176. Its totient is φ = 37772638400.

The previous prime is 56861311853. The next prime is 56861311883. The reversal of 56861311863 is 36811316865.

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

It is a cyclic number.

It is not a de Polignac number, because 56861311863 - 2⁵ = 56861311831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56861311853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33724728 + ... + 33726413.

It is an arithmetic number, because the mean of its divisors is an integer number (9510611022).

Almost surely, 2^56861311863 is an apocalyptic number.

56861311863 is a deficient number, since it is larger than the sum of its proper divisors (19223576313).

56861311863 is a wasteful number, since it uses less digits than its factorization.

56861311863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67451425.

The product of its digits is 622080, while the sum is 48.

The spelling of 56861311863 in words is "fifty-six billion, eight hundred sixty-one million, three hundred eleven thousand, eight hundred sixty-three".