13251991218467 has 2 divisors, whose sum is σ = 13251991218468. Its totient is φ = 13251991218466.

The previous prime is 13251991218461. The next prime is 13251991218491. The reversal of 13251991218467 is 76481219915231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13251991218467 - 2³⁴ = 13234811349283 is a prime.

It is not a weakly prime, because it can be changed into another prime (13251991218461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625995609233 + 6625995609234.

It is an arithmetic number, because the mean of its divisors is an integer number (6625995609234).

Almost surely, 2^{13251991218467} is an apocalyptic number.

13251991218467 is a deficient number, since it is larger than the sum of its proper divisors (1).

13251991218467 is an equidigital number, since it uses as much as digits as its factorization.

13251991218467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 59.

The spelling of 13251991218467 in words is "thirteen trillion, two hundred fifty-one billion, nine hundred ninety-one million, two hundred eighteen thousand, four hundred sixty-seven".