22456987792 has 20 divisors (see below), whose sum is σ = 44686372156. Its totient is φ = 10925020800.

The previous prime is 22456987783. The next prime is 22456987807. The reversal of 22456987792 is 29778965422.

It can be written as a sum of positive squares in 2 ways, for example, as 8579205376 + 13877782416 = 92624^2 + 117804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22456987792.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18966459 + ... + 18967642.

Almost surely, 2^22456987792 is an apocalyptic number.

It is an amenable number.

22456987792 is a deficient number, since it is larger than the sum of its proper divisors (22229384364).

22456987792 is a wasteful number, since it uses less digits than its factorization.

22456987792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37934146 (or 37934140 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 61.

The spelling of 22456987792 in words is "twenty-two billion, four hundred fifty-six million, nine hundred eighty-seven thousand, seven hundred ninety-two".