12974891239 has 2 divisors, whose sum is σ = 12974891240. Its totient is φ = 12974891238.

The previous prime is 12974891233. The next prime is 12974891297. The reversal of 12974891239 is 93219847921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12974891239 - 2⁵ = 12974891207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12974891239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12974891233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6487445619 + 6487445620.

It is an arithmetic number, because the mean of its divisors is an integer number (6487445620).

Almost surely, 2^12974891239 is an apocalyptic number.

12974891239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12974891239 is an equidigital number, since it uses as much as digits as its factorization.

12974891239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 55.

The spelling of 12974891239 in words is "twelve billion, nine hundred seventy-four million, eight hundred ninety-one thousand, two hundred thirty-nine".