631568495793 has 16 divisors (see below), whose sum is σ = 887133268800. Its totient is φ = 398560760640.

The previous prime is 631568495741. The next prime is 631568495819. The reversal of 631568495793 is 397594865136.

It is not a de Polignac number, because 631568495793 - 2²⁵ = 631534941361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631568497793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4437738 + ... + 4577843.

It is an arithmetic number, because the mean of its divisors is an integer number (55445829300).

Almost surely, 2^631568495793 is an apocalyptic number.

It is an amenable number.

631568495793 is a deficient number, since it is larger than the sum of its proper divisors (255564773007).

631568495793 is a wasteful number, since it uses less digits than its factorization.

631568495793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016832.

The product of its digits is 146966400, while the sum is 66.

The spelling of 631568495793 in words is "six hundred thirty-one billion, five hundred sixty-eight million, four hundred ninety-five thousand, seven hundred ninety-three".