23909614217 has 2 divisors, whose sum is σ = 23909614218. Its totient is φ = 23909614216.

The previous prime is 23909614213. The next prime is 23909614237. The reversal of 23909614217 is 71241690932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22075719241 + 1833894976 = 148579^2 + 42824^2 .

It is a cyclic number.

It is not a de Polignac number, because 23909614217 - 2² = 23909614213 is a prime.

It is not a weakly prime, because it can be changed into another prime (23909614213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11954807108 + 11954807109.

It is an arithmetic number, because the mean of its divisors is an integer number (11954807109).

Almost surely, 2^23909614217 is an apocalyptic number.

It is an amenable number.

23909614217 is a deficient number, since it is larger than the sum of its proper divisors (1).

23909614217 is an equidigital number, since it uses as much as digits as its factorization.

23909614217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 23909614217 in words is "twenty-three billion, nine hundred nine million, six hundred fourteen thousand, two hundred seventeen".