12617210230817 has 2 divisors, whose sum is σ = 12617210230818. Its totient is φ = 12617210230816.

The previous prime is 12617210230813. The next prime is 12617210230837. The reversal of 12617210230817 is 71803201271621.

12617210230817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12257029008016 + 360181222801 = 3501004^2 + 600151^2 .

It is a cyclic number.

It is not a de Polignac number, because 12617210230817 - 2² = 12617210230813 is a prime.

It is not a weakly prime, because it can be changed into another prime (12617210230813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308605115408 + 6308605115409.

It is an arithmetic number, because the mean of its divisors is an integer number (6308605115409).

Almost surely, 2^{12617210230817} is an apocalyptic number.

It is an amenable number.

12617210230817 is a deficient number, since it is larger than the sum of its proper divisors (1).

12617210230817 is an equidigital number, since it uses as much as digits as its factorization.

12617210230817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 12617210230817 in words is "twelve trillion, six hundred seventeen billion, two hundred ten million, two hundred thirty thousand, eight hundred seventeen".