22657193892 has 36 divisors (see below), whose sum is σ = 59247262620. Its totient is φ = 7291970112.

The previous prime is 22657193861. The next prime is 22657193987. The reversal of 22657193892 is 29839175622.

It can be written as a sum of positive squares in 2 ways, for example, as 19283210496 + 3373983396 = 138864^2 + 58086^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10850103 + ... + 10852190.

It is an arithmetic number, because the mean of its divisors is an integer number (1645757295).

Almost surely, 2^22657193892 is an apocalyptic number.

It is an amenable number.

22657193892 is an abundant number, since it is smaller than the sum of its proper divisors (36590068728).

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

22657193892 is a wasteful number, since it uses less digits than its factorization.

22657193892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21702332 (or 21702327 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 22657193892 in words is "twenty-two billion, six hundred fifty-seven million, one hundred ninety-three thousand, eight hundred ninety-two".