813109862560 has 96 divisors (see below), whose sum is σ = 2042313678720. Its totient is φ = 305232964608.

The previous prime is 813109862533. The next prime is 813109862561. The reversal of 813109862560 is 65268901318.

It is a super-2 number, since 2×813109862560² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813109862561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1889430 + ... + 2279509.

It is an arithmetic number, because the mean of its divisors is an integer number (21274100820).

Almost surely, 2^813109862560 is an apocalyptic number.

813109862560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

813109862560 is an abundant number, since it is smaller than the sum of its proper divisors (1229203816160).

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

813109862560 is a wasteful number, since it uses less digits than its factorization.

813109862560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169030 (or 4169022 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 813109862560 in words is "eight hundred thirteen billion, one hundred nine million, eight hundred sixty-two thousand, five hundred sixty".