56811372983 has 4 divisors (see below), whose sum is σ = 57012120168. Its totient is φ = 56610625800.

The previous prime is 56811372979. The next prime is 56811372991. The reversal of 56811372983 is 38927311865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56811372983 - 2² = 56811372979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56811372083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100373168 + ... + 100373733.

It is an arithmetic number, because the mean of its divisors is an integer number (14253030042).

Almost surely, 2^56811372983 is an apocalyptic number.

56811372983 is a deficient number, since it is larger than the sum of its proper divisors (200747185).

56811372983 is a wasteful number, since it uses less digits than its factorization.

56811372983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200747184.

The product of its digits is 2177280, while the sum is 53.

The spelling of 56811372983 in words is "fifty-six billion, eight hundred eleven million, three hundred seventy-two thousand, nine hundred eighty-three".