22979919889 has 2 divisors, whose sum is σ = 22979919890. Its totient is φ = 22979919888.

The previous prime is 22979919871. The next prime is 22979919913. The reversal of 22979919889 is 98891997922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20397552400 + 2582367489 = 142820^2 + 50817^2 .

It is a cyclic number.

It is not a de Polignac number, because 22979919889 - 2⁵ = 22979919857 is a prime.

It is not a weakly prime, because it can be changed into another prime (22979919839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11489959944 + 11489959945.

It is an arithmetic number, because the mean of its divisors is an integer number (11489959945).

Almost surely, 2^22979919889 is an apocalyptic number.

It is an amenable number.

22979919889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22979919889 is an equidigital number, since it uses as much as digits as its factorization.

22979919889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105815808, while the sum is 73.

The spelling of 22979919889 in words is "twenty-two billion, nine hundred seventy-nine million, nine hundred nineteen thousand, eight hundred eighty-nine".