22939987868957 has 2 divisors, whose sum is σ = 22939987868958. Its totient is φ = 22939987868956.

The previous prime is 22939987868951. The next prime is 22939987869017. The reversal of 22939987868957 is 75986878993922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14583760439161 + 8356227429796 = 3818869^2 + 2890714^2 .

It is a cyclic number.

It is not a de Polignac number, because 22939987868957 - 2⁶ = 22939987868893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22939987868951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11469993934478 + 11469993934479.

It is an arithmetic number, because the mean of its divisors is an integer number (11469993934479).

Almost surely, 2^{22939987868957} is an apocalyptic number.

It is an amenable number.

22939987868957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22939987868957 is an equidigital number, since it uses as much as digits as its factorization.

22939987868957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 59256852480, while the sum is 92.

The spelling of 22939987868957 in words is "twenty-two trillion, nine hundred thirty-nine billion, nine hundred eighty-seven million, eight hundred sixty-eight thousand, nine hundred fifty-seven".