23934975817 has 2 divisors, whose sum is σ = 23934975818. Its totient is φ = 23934975816.

The previous prime is 23934975803. The next prime is 23934975881. The reversal of 23934975817 is 71857943932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20229088441 + 3705887376 = 142229^2 + 60876^2 .

It is a cyclic number.

It is not a de Polignac number, because 23934975817 - 2²⁷ = 23800758089 is a prime.

It is not a weakly prime, because it can be changed into another prime (23934978817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11967487908 + 11967487909.

It is an arithmetic number, because the mean of its divisors is an integer number (11967487909).

Almost surely, 2^23934975817 is an apocalyptic number.

It is an amenable number.

23934975817 is a deficient number, since it is larger than the sum of its proper divisors (1).

23934975817 is an equidigital number, since it uses as much as digits as its factorization.

23934975817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 58.

The spelling of 23934975817 in words is "twenty-three billion, nine hundred thirty-four million, nine hundred seventy-five thousand, eight hundred seventeen".