22690937189 has 2 divisors, whose sum is σ = 22690937190. Its totient is φ = 22690937188.

The previous prime is 22690937179. The next prime is 22690937209. The reversal of 22690937189 is 98173909622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20731104289 + 1959832900 = 143983^2 + 44270^2 .

It is a cyclic number.

It is not a de Polignac number, because 22690937189 - 2²⁴ = 22674159973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22690937179) 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, 11345468594 + 11345468595.

It is an arithmetic number, because the mean of its divisors is an integer number (11345468595).

Almost surely, 2^22690937189 is an apocalyptic number.

It is an amenable number.

22690937189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22690937189 is an equidigital number, since it uses as much as digits as its factorization.

22690937189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 22690937189 in words is "twenty-two billion, six hundred ninety million, nine hundred thirty-seven thousand, one hundred eighty-nine".