12539163911 has 2 divisors, whose sum is σ = 12539163912. Its totient is φ = 12539163910.

The previous prime is 12539163899. The next prime is 12539163913. The reversal of 12539163911 is 11936193521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12539163911 - 2²⁶ = 12472055047 is a prime.

It is a Sophie Germain prime.

Together with 12539163913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12539163913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6269581955 + 6269581956.

It is an arithmetic number, because the mean of its divisors is an integer number (6269581956).

Almost surely, 2^12539163911 is an apocalyptic number.

12539163911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12539163911 is an equidigital number, since it uses as much as digits as its factorization.

12539163911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 41.

The spelling of 12539163911 in words is "twelve billion, five hundred thirty-nine million, one hundred sixty-three thousand, nine hundred eleven".