12793656719 has 2 divisors, whose sum is σ = 12793656720. Its totient is φ = 12793656718.

The previous prime is 12793656709. The next prime is 12793656751. The reversal of 12793656719 is 91765639721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12793656719 - 2⁴ = 12793656703 is a prime.

It is a super-2 number, since 2×12793656719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12793656709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6396828359 + 6396828360.

It is an arithmetic number, because the mean of its divisors is an integer number (6396828360).

Almost surely, 2^12793656719 is an apocalyptic number.

12793656719 is a deficient number, since it is larger than the sum of its proper divisors (1).

12793656719 is an equidigital number, since it uses as much as digits as its factorization.

12793656719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 56.

The spelling of 12793656719 in words is "twelve billion, seven hundred ninety-three million, six hundred fifty-six thousand, seven hundred nineteen".