23909637329 has 2 divisors, whose sum is σ = 23909637330. Its totient is φ = 23909637328.

The previous prime is 23909637307. The next prime is 23909637331. The reversal of 23909637329 is 92373690932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17576660929 + 6332976400 = 132577^2 + 79580^2 .

It is a cyclic number.

It is not a de Polignac number, because 23909637329 - 2²⁸ = 23641201873 is a prime.

Together with 23909637331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23909637229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11954818664 + 11954818665.

It is an arithmetic number, because the mean of its divisors is an integer number (11954818665).

Almost surely, 2^23909637329 is an apocalyptic number.

It is an amenable number.

23909637329 is a deficient number, since it is larger than the sum of its proper divisors (1).

23909637329 is an equidigital number, since it uses as much as digits as its factorization.

23909637329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 53.

The spelling of 23909637329 in words is "twenty-three billion, nine hundred nine million, six hundred thirty-seven thousand, three hundred twenty-nine".