813937968151 has 32 divisors (see below), whose sum is σ = 1093030963200. Its totient is φ = 586883011680.

The previous prime is 813937968149. The next prime is 813937968157. The reversal of 813937968151 is 151869739318.

It is not a de Polignac number, because 813937968151 - 2¹ = 813937968149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 813937968151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813937968157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6406261 + ... + 6532078.

It is an arithmetic number, because the mean of its divisors is an integer number (34157217600).

Almost surely, 2^813937968151 is an apocalyptic number.

813937968151 is a deficient number, since it is larger than the sum of its proper divisors (279092995049).

813937968151 is a wasteful number, since it uses less digits than its factorization.

813937968151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12938419.

The product of its digits is 9797760, while the sum is 61.

The spelling of 813937968151 in words is "eight hundred thirteen billion, nine hundred thirty-seven million, nine hundred sixty-eight thousand, one hundred fifty-one".