12691356002839 has 2 divisors, whose sum is σ = 12691356002840. Its totient is φ = 12691356002838.

The previous prime is 12691356002833. The next prime is 12691356002849. The reversal of 12691356002839 is 93820065319621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12691356002839 - 2⁵ = 12691356002807 is a prime.

It is a super-2 number, since 2×12691356002839² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12691356002839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12691356002833) 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, 6345678001419 + 6345678001420.

It is an arithmetic number, because the mean of its divisors is an integer number (6345678001420).

Almost surely, 2^{12691356002839} is an apocalyptic number.

12691356002839 is a deficient number, since it is larger than the sum of its proper divisors (1).

12691356002839 is an equidigital number, since it uses as much as digits as its factorization.

12691356002839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 12691356002839 in words is "twelve trillion, six hundred ninety-one billion, three hundred fifty-six million, two thousand, eight hundred thirty-nine".