22618423357 has 6 divisors (see below), whose sum is σ = 23425264538. Its totient is φ = 21838476912.

The previous prime is 22618423349. The next prime is 22618423361. The reversal of 22618423357 is 75332481622.

It can be written as a sum of positive squares in 3 ways, for example, as 11821343076 + 10797080281 = 108726^2 + 103909^2 .

It is not a de Polignac number, because 22618423357 - 2³ = 22618423349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22618423337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13446498 + ... + 13448179.

Almost surely, 2^22618423357 is an apocalyptic number.

It is an amenable number.

22618423357 is a deficient number, since it is larger than the sum of its proper divisors (806841181).

22618423357 is an equidigital number, since it uses as much as digits as its factorization.

22618423357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26894735 (or 26894706 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The spelling of 22618423357 in words is "twenty-two billion, six hundred eighteen million, four hundred twenty-three thousand, three hundred fifty-seven".