22972387842 has 24 divisors (see below), whose sum is σ = 50589468540. Its totient is φ = 7531930080.

The previous prime is 22972387829. The next prime is 22972387859. The reversal of 22972387842 is 24878327922.

It can be written as a sum of positive squares in 2 ways, for example, as 21470747841 + 1501640001 = 146529^2 + 38751^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10459917 + ... + 10462112.

Almost surely, 2^22972387842 is an apocalyptic number.

22972387842 is an abundant number, since it is smaller than the sum of its proper divisors (27617080698).

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

22972387842 is a wasteful number, since it uses less digits than its factorization.

22972387842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20922098 (or 20922095 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 22972387842 in words is "twenty-two billion, nine hundred seventy-two million, three hundred eighty-seven thousand, eight hundred forty-two".