12917811499 has 2 divisors, whose sum is σ = 12917811500. Its totient is φ = 12917811498.

The previous prime is 12917811427. The next prime is 12917811509. The reversal of 12917811499 is 99411871921.

It is a strong prime.

It is an emirp because it is prime and its reverse (99411871921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12917811499 - 2¹³ = 12917803307 is a prime.

It is not a weakly prime, because it can be changed into another prime (12917815499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6458905749 + 6458905750.

It is an arithmetic number, because the mean of its divisors is an integer number (6458905750).

Almost surely, 2^12917811499 is an apocalyptic number.

12917811499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12917811499 is an equidigital number, since it uses as much as digits as its factorization.

12917811499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 52.

The spelling of 12917811499 in words is "twelve billion, nine hundred seventeen million, eight hundred eleven thousand, four hundred ninety-nine".