813088280136 has 32 divisors (see below), whose sum is σ = 2217513492000. Its totient is φ = 246390387840.

The previous prime is 813088280063. The next prime is 813088280149. The reversal of 813088280136 is 631082880318.

It is a super-2 number, since 2×813088280136² (a number of 25 digits) contains 22 as substring.

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, 1539939661 + ... + 1539940188.

It is an arithmetic number, because the mean of its divisors is an integer number (69297296625).

Almost surely, 2^813088280136 is an apocalyptic number.

It is an amenable number.

813088280136 is an abundant number, since it is smaller than the sum of its proper divisors (1404425211864).

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

813088280136 is a wasteful number, since it uses less digits than its factorization.

813088280136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079879869 (or 3079879865 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 813088280136 in words is "eight hundred thirteen billion, eighty-eight million, two hundred eighty thousand, one hundred thirty-six".