22920865589 has 2 divisors, whose sum is σ = 22920865590. Its totient is φ = 22920865588.

The previous prime is 22920865547. The next prime is 22920865601. The reversal of 22920865589 is 98556802922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18109084900 + 4811780689 = 134570^2 + 69367^2 .

It is a cyclic number.

It is not a de Polignac number, because 22920865589 - 2²⁰ = 22919817013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22920865189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11460432794 + 11460432795.

It is an arithmetic number, because the mean of its divisors is an integer number (11460432795).

Almost surely, 2^22920865589 is an apocalyptic number.

It is an amenable number.

22920865589 is a deficient number, since it is larger than the sum of its proper divisors (1).

22920865589 is an equidigital number, since it uses as much as digits as its factorization.

22920865589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 22920865589 in words is "twenty-two billion, nine hundred twenty million, eight hundred sixty-five thousand, five hundred eighty-nine".