813545922860 has 24 divisors (see below), whose sum is σ = 1863759751056. Its totient is φ = 295834880960.

The previous prime is 813545922859. The next prime is 813545922919. The reversal of 813545922860 is 68229545318.

It is a happy 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, 1848967787 + ... + 1848968226.

It is an arithmetic number, because the mean of its divisors is an integer number (77656656294).

Almost surely, 2^813545922860 is an apocalyptic number.

It is an amenable number.

813545922860 is an abundant number, since it is smaller than the sum of its proper divisors (1050213828196).

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

813545922860 is a wasteful number, since it uses less digits than its factorization.

813545922860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697936033 (or 3697936031 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 813545922860 in words is "eight hundred thirteen billion, five hundred forty-five million, nine hundred twenty-two thousand, eight hundred sixty".