23356688009 has 2 divisors, whose sum is σ = 23356688010. Its totient is φ = 23356688008.

The previous prime is 23356687993. The next prime is 23356688021. The reversal of 23356688009 is 90088665332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15682051984 + 7674636025 = 125228^2 + 87605^2 .

It is a cyclic number.

It is not a de Polignac number, because 23356688009 - 2⁴ = 23356687993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23356688039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11678344004 + 11678344005.

It is an arithmetic number, because the mean of its divisors is an integer number (11678344005).

Almost surely, 2^23356688009 is an apocalyptic number.

It is an amenable number.

23356688009 is a deficient number, since it is larger than the sum of its proper divisors (1).

23356688009 is an equidigital number, since it uses as much as digits as its factorization.

23356688009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 23356688009 in words is "twenty-three billion, three hundred fifty-six million, six hundred eighty-eight thousand, nine".