13917149518331 has 2 divisors, whose sum is σ = 13917149518332. Its totient is φ = 13917149518330.

The previous prime is 13917149518243. The next prime is 13917149518427. The reversal of 13917149518331 is 13381594171931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13917149518331 - 2¹⁸ = 13917149256187 is a prime.

It is a super-2 number, since 2×13917149518331² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13917149568331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6958574759165 + 6958574759166.

It is an arithmetic number, because the mean of its divisors is an integer number (6958574759166).

Almost surely, 2^{13917149518331} is an apocalyptic number.

13917149518331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13917149518331 is an equidigital number, since it uses as much as digits as its factorization.

13917149518331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 56.

The spelling of 13917149518331 in words is "thirteen trillion, nine hundred seventeen billion, one hundred forty-nine million, five hundred eighteen thousand, three hundred thirty-one".