22768779233 has 2 divisors, whose sum is σ = 22768779234. Its totient is φ = 22768779232.

The previous prime is 22768779211. The next prime is 22768779259. The reversal of 22768779233 is 33297786722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18963493264 + 3805285969 = 137708^2 + 61687^2 .

It is a cyclic number.

It is not a de Polignac number, because 22768779233 - 2¹⁰ = 22768778209 is a prime.

It is a super-2 number, since 2×22768779233² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22768779263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11384389616 + 11384389617.

It is an arithmetic number, because the mean of its divisors is an integer number (11384389617).

Almost surely, 2^22768779233 is an apocalyptic number.

It is an amenable number.

22768779233 is a deficient number, since it is larger than the sum of its proper divisors (1).

22768779233 is an equidigital number, since it uses as much as digits as its factorization.

22768779233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 56.

The spelling of 22768779233 in words is "twenty-two billion, seven hundred sixty-eight million, seven hundred seventy-nine thousand, two hundred thirty-three".