56751831793 has 4 divisors (see below), whose sum is σ = 58708791540. Its totient is φ = 54794872048.

The previous prime is 56751831791. The next prime is 56751831803. The reversal of 56751831793 is 39713815765.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44727174144 + 12024657649 = 211488^2 + 109657^2 .

It is a cyclic number.

It is not a de Polignac number, because 56751831793 - 2¹ = 56751831791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56751831791) 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, 978479830 + ... + 978479887.

It is an arithmetic number, because the mean of its divisors is an integer number (14677197885).

Almost surely, 2^56751831793 is an apocalyptic number.

It is an amenable number.

56751831793 is a deficient number, since it is larger than the sum of its proper divisors (1956959747).

56751831793 is a wasteful number, since it uses less digits than its factorization.

56751831793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956959746.

The product of its digits is 4762800, while the sum is 55.

The spelling of 56751831793 in words is "fifty-six billion, seven hundred fifty-one million, eight hundred thirty-one thousand, seven hundred ninety-three".