812976161784 has 32 divisors (see below), whose sum is σ = 2039777751120. Its totient is φ = 270013741056.

The previous prime is 812976161783. The next prime is 812976161791. The reversal of 812976161784 is 487161679218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812976161783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61137769 + ... + 61151064.

Almost surely, 2^812976161784 is an apocalyptic number.

It is an amenable number.

812976161784 is an abundant number, since it is smaller than the sum of its proper divisors (1226801589336).

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

812976161784 is a wasteful number, since it uses less digits than its factorization.

812976161784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122289119 (or 122289115 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 60.

The spelling of 812976161784 in words is "eight hundred twelve billion, nine hundred seventy-six million, one hundred sixty-one thousand, seven hundred eighty-four".