22812173712 has 30 divisors (see below), whose sum is σ = 63842403222. Its totient is φ = 7604057856.

The previous prime is 22812173711. The next prime is 22812173719. The reversal of 22812173712 is 21737121822.

It is a happy number.

22812173712 is a `hidden beast` number, since 2 + 281 + 2 + 1 + 7 + 371 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14564627856 + 8247545856 = 120684^2 + 90816^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22812173711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79208793 + ... + 79209080.

Almost surely, 2^22812173712 is an apocalyptic number.

It is an amenable number.

22812173712 is an abundant number, since it is smaller than the sum of its proper divisors (41030229510).

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

22812173712 is a wasteful number, since it uses less digits than its factorization.

22812173712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158417887 (or 158417878 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The spelling of 22812173712 in words is "twenty-two billion, eight hundred twelve million, one hundred seventy-three thousand, seven hundred twelve".