812722436334 has 24 divisors (see below), whose sum is σ = 1763993359440. Its totient is φ = 270431363808.

The previous prime is 812722436333. The next prime is 812722436377. The reversal of 812722436334 is 433634227218.

812722436334 is a `hidden beast` number, since 8 + 1 + 2 + 7 + 2 + 2 + 4 + 3 + 633 + 4 = 666.

812722436334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 812722436334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812722436333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39665722 + ... + 39686205.

It is an arithmetic number, because the mean of its divisors is an integer number (73499723310).

Almost surely, 2^812722436334 is an apocalyptic number.

812722436334 is an abundant number, since it is smaller than the sum of its proper divisors (951270923106).

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

812722436334 is a wasteful number, since it uses less digits than its factorization.

812722436334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79352504 (or 79352501 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The spelling of 812722436334 in words is "eight hundred twelve billion, seven hundred twenty-two million, four hundred thirty-six thousand, three hundred thirty-four".