813356858272 has 48 divisors (see below), whose sum is σ = 1909620461952. Its totient is φ = 333425790720.

The previous prime is 813356858263. The next prime is 813356858323. The reversal of 813356858272 is 272858653318.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78930879 + ... + 78941182.

It is an arithmetic number, because the mean of its divisors is an integer number (39783759624).

Almost surely, 2^813356858272 is an apocalyptic number.

It is an amenable number.

813356858272 is an abundant number, since it is smaller than the sum of its proper divisors (1096263603680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813356858272 is a wasteful number, since it uses less digits than its factorization.

813356858272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157872101 (or 157872093 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 58.

The spelling of 813356858272 in words is "eight hundred thirteen billion, three hundred fifty-six million, eight hundred fifty-eight thousand, two hundred seventy-two".