22788138239 has 2 divisors, whose sum is σ = 22788138240. Its totient is φ = 22788138238.

The previous prime is 22788138187. The next prime is 22788138271. The reversal of 22788138239 is 93283188722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22788138239 is a prime.

It is a super-2 number, since 2×22788138239² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22788138539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11394069119 + 11394069120.

It is an arithmetic number, because the mean of its divisors is an integer number (11394069120).

Almost surely, 2^22788138239 is an apocalyptic number.

22788138239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22788138239 is an equidigital number, since it uses as much as digits as its factorization.

22788138239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 53.

The spelling of 22788138239 in words is "twenty-two billion, seven hundred eighty-eight million, one hundred thirty-eight thousand, two hundred thirty-nine".