12695859139 has 2 divisors, whose sum is σ = 12695859140. Its totient is φ = 12695859138.

The previous prime is 12695859101. The next prime is 12695859149. The reversal of 12695859139 is 93195859621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12695859139 - 2¹⁵ = 12695826371 is a prime.

It is a super-2 number, since 2×12695859139² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12695859149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6347929569 + 6347929570.

It is an arithmetic number, because the mean of its divisors is an integer number (6347929570).

Almost surely, 2^12695859139 is an apocalyptic number.

12695859139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12695859139 is an equidigital number, since it uses as much as digits as its factorization.

12695859139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5248800, while the sum is 58.

The spelling of 12695859139 in words is "twelve billion, six hundred ninety-five million, eight hundred fifty-nine thousand, one hundred thirty-nine".