12718637418559 has 2 divisors, whose sum is σ = 12718637418560. Its totient is φ = 12718637418558.

The previous prime is 12718637418481. The next prime is 12718637418577. The reversal of 12718637418559 is 95581473681721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12718637418559 - 2¹⁵ = 12718637385791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12718637418494 and 12718637418503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12718637418589) 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, 6359318709279 + 6359318709280.

It is an arithmetic number, because the mean of its divisors is an integer number (6359318709280).

Almost surely, 2^{12718637418559} is an apocalyptic number.

12718637418559 is a deficient number, since it is larger than the sum of its proper divisors (1).

12718637418559 is an equidigital number, since it uses as much as digits as its factorization.

12718637418559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101606400, while the sum is 67.

The spelling of 12718637418559 in words is "twelve trillion, seven hundred eighteen billion, six hundred thirty-seven million, four hundred eighteen thousand, five hundred fifty-nine".