22991827922 has 90 divisors (see below), whose sum is σ = 43445197593. Its totient is φ = 9099033216.

The previous prime is 22991827919. The next prime is 22991827949. The reversal of 22991827922 is 22972819922.

It can be written as a sum of positive squares in 8 ways, for example, as 12283510561 + 10708317361 = 110831^2 + 103481^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=107219.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 433808048 + ... + 433808100.

Almost surely, 2^22991827922 is an apocalyptic number.

22991827922 is a deficient number, since it is larger than the sum of its proper divisors (20453369671).

22991827922 is an frugal number, since it uses more digits than its factorization.

22991827922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 79 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 53.

The spelling of 22991827922 in words is "twenty-two billion, nine hundred ninety-one million, eight hundred twenty-seven thousand, nine hundred twenty-two".