812507195875 has 32 divisors (see below), whose sum is σ = 1067499164160. Its totient is φ = 615724956000.

The previous prime is 812507195803. The next prime is 812507195893. The reversal of 812507195875 is 578591705218.

It is not a de Polignac number, because 812507195875 - 2⁹ = 812507195363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31961920 + ... + 31987330.

It is an arithmetic number, because the mean of its divisors is an integer number (33359348880).

Almost surely, 2^812507195875 is an apocalyptic number.

812507195875 is a deficient number, since it is larger than the sum of its proper divisors (254991968285).

812507195875 is a wasteful number, since it uses less digits than its factorization.

812507195875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38908 (or 38898 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 58.

The spelling of 812507195875 in words is "eight hundred twelve billion, five hundred seven million, one hundred ninety-five thousand, eight hundred seventy-five".