22677392921 has 2 divisors, whose sum is σ = 22677392922. Its totient is φ = 22677392920.

The previous prime is 22677392897. The next prime is 22677392977. The reversal of 22677392921 is 12929377622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22618656025 + 58736896 = 150395^2 + 7664^2 .

It is a cyclic number.

It is not a de Polignac number, because 22677392921 - 2¹⁰ = 22677391897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22677392921.

It is not a weakly prime, because it can be changed into another prime (22677392021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11338696460 + 11338696461.

It is an arithmetic number, because the mean of its divisors is an integer number (11338696461).

Almost surely, 2^22677392921 is an apocalyptic number.

It is an amenable number.

22677392921 is a deficient number, since it is larger than the sum of its proper divisors (1).

22677392921 is an equidigital number, since it uses as much as digits as its factorization.

22677392921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 50.

The spelling of 22677392921 in words is "twenty-two billion, six hundred seventy-seven million, three hundred ninety-two thousand, nine hundred twenty-one".