22904313613 has 2 divisors, whose sum is σ = 22904313614. Its totient is φ = 22904313612.

The previous prime is 22904313599. The next prime is 22904313643. The reversal of 22904313613 is 31631340922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12618702889 + 10285610724 = 112333^2 + 101418^2 .

It is a cyclic number.

It is not a de Polignac number, because 22904313613 - 2⁵ = 22904313581 is a prime.

It is a super-2 number, since 2×22904313613² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22904313643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11452156806 + 11452156807.

It is an arithmetic number, because the mean of its divisors is an integer number (11452156807).

Almost surely, 2^22904313613 is an apocalyptic number.

It is an amenable number.

22904313613 is a deficient number, since it is larger than the sum of its proper divisors (1).

22904313613 is an equidigital number, since it uses as much as digits as its factorization.

22904313613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 22904313613 in words is "twenty-two billion, nine hundred four million, three hundred thirteen thousand, six hundred thirteen".