14231863686517 has 2 divisors, whose sum is σ = 14231863686518. Its totient is φ = 14231863686516.

The previous prime is 14231863686511. The next prime is 14231863686617. The reversal of 14231863686517 is 71568636813241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8154228624721 + 6077635061796 = 2855561^2 + 2465286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14231863686517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14231863686511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7115931843258 + 7115931843259.

It is an arithmetic number, because the mean of its divisors is an integer number (7115931843259).

Almost surely, 2^{14231863686517} is an apocalyptic number.

It is an amenable number.

14231863686517 is a deficient number, since it is larger than the sum of its proper divisors (1).

14231863686517 is an equidigital number, since it uses as much as digits as its factorization.

14231863686517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 61.

The spelling of 14231863686517 in words is "fourteen trillion, two hundred thirty-one billion, eight hundred sixty-three million, six hundred eighty-six thousand, five hundred seventeen".