812376962172 has 30 divisors (see below), whose sum is σ = 2123713849488. Its totient is φ = 270792320616.

The previous prime is 812376962153. The next prime is 812376962179. The reversal of 812376962172 is 271269673218.

It is a happy number.

812376962172 is a `hidden beast` number, since 8 + 1 + 2 + 3 + 7 + 6 + 9 + 621 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812376962179) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1253667828 + ... + 1253668475.

Almost surely, 2^812376962172 is an apocalyptic number.

It is an amenable number.

812376962172 is an abundant number, since it is smaller than the sum of its proper divisors (1311336887316).

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

812376962172 is a wasteful number, since it uses less digits than its factorization.

812376962172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507336319 (or 2507336308 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 812376962172 in words is "eight hundred twelve billion, three hundred seventy-six million, nine hundred sixty-two thousand, one hundred seventy-two".