22772957209 has 2 divisors, whose sum is σ = 22772957210. Its totient is φ = 22772957208.

The previous prime is 22772957203. The next prime is 22772957219. The reversal of 22772957209 is 90275927722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19091501584 + 3681455625 = 138172^2 + 60675^2 .

It is a cyclic number.

It is not a de Polignac number, because 22772957209 - 2¹⁷ = 22772826137 is a prime.

It is not a weakly prime, because it can be changed into another prime (22772957203) 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, 11386478604 + 11386478605.

It is an arithmetic number, because the mean of its divisors is an integer number (11386478605).

Almost surely, 2^22772957209 is an apocalyptic number.

It is an amenable number.

22772957209 is a deficient number, since it is larger than the sum of its proper divisors (1).

22772957209 is an equidigital number, since it uses as much as digits as its factorization.

22772957209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 22772957209 in words is "twenty-two billion, seven hundred seventy-two million, nine hundred fifty-seven thousand, two hundred nine".