22909268189 has 2 divisors, whose sum is σ = 22909268190. Its totient is φ = 22909268188.

The previous prime is 22909268171. The next prime is 22909268191. The reversal of 22909268189 is 98186290922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22909244164 + 24025 = 151358^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 22909268189 - 2²⁰ = 22908219613 is a prime.

Together with 22909268191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22909268149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11454634094 + 11454634095.

It is an arithmetic number, because the mean of its divisors is an integer number (11454634095).

Almost surely, 2^22909268189 is an apocalyptic number.

It is an amenable number.

22909268189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22909268189 is an equidigital number, since it uses as much as digits as its factorization.

22909268189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 22909268189 in words is "twenty-two billion, nine hundred nine million, two hundred sixty-eight thousand, one hundred eighty-nine".