631875787578136 has 16 divisors (see below), whose sum is σ = 1184858174784600. Its totient is φ = 315913607635584.

The previous prime is 631875787577981. The next prime is 631875787578143.

631875787578136 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 631875787578136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035658610 + ... + 3035866753.

Almost surely, 2^{631875787578136} is an apocalyptic number.

It is an amenable number.

631875787578136 is a deficient number, since it is larger than the sum of its proper divisors (552982387206464).

631875787578136 is a wasteful number, since it uses less digits than its factorization.

631875787578136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071538378 (or 6071538374 counting only the distinct ones).

The product of its digits is 9957427200, while the sum is 82.

The spelling of 631875787578136 in words is "six hundred thirty-one trillion, eight hundred seventy-five billion, seven hundred eighty-seven million, five hundred seventy-eight thousand, one hundred thirty-six".