813053637886 has 32 divisors (see below), whose sum is σ = 1447383232512. Its totient is φ = 335191927680.

The previous prime is 813053637857. The next prime is 813053637901. The reversal of 813053637886 is 688736350318.

It is a super-2 number, since 2×813053637886² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 813053637886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5536491 + ... + 5681446.

It is an arithmetic number, because the mean of its divisors is an integer number (45230726016).

Almost surely, 2^813053637886 is an apocalyptic number.

813053637886 is a deficient number, since it is larger than the sum of its proper divisors (634329594626).

813053637886 is a wasteful number, since it uses less digits than its factorization.

813053637886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11218144.

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 813053637886 in words is "eight hundred thirteen billion, fifty-three million, six hundred thirty-seven thousand, eight hundred eighty-six".