813774680 has 32 divisors (see below), whose sum is σ = 1840212000. Its totient is φ = 323870976.

The previous prime is 813774679. The next prime is 813774691. The reversal of 813774680 is 86477318.

It is a congruent number.

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, 43157 + ... + 59076.

It is an arithmetic number, because the mean of its divisors is an integer number (57506625).

Almost surely, 2^813774680 is an apocalyptic number.

It is an amenable number.

813774680 is an abundant number, since it is smaller than the sum of its proper divisors (1026437320).

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

813774680 is a wasteful number, since it uses less digits than its factorization.

813774680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102443 (or 102439 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 813774680 is about 28526.7362311218. The cubic root of 813774680 is about 933.6155093519.

The spelling of 813774680 in words is "eight hundred thirteen million, seven hundred seventy-four thousand, six hundred eighty".