12981085279 has 2 divisors, whose sum is σ = 12981085280. Its totient is φ = 12981085278.

The previous prime is 12981085213. The next prime is 12981085289. The reversal of 12981085279 is 97258018921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12981085279 - 2⁷ = 12981085151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12981085289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6490542639 + 6490542640.

It is an arithmetic number, because the mean of its divisors is an integer number (6490542640).

Almost surely, 2^12981085279 is an apocalyptic number.

12981085279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12981085279 is an equidigital number, since it uses as much as digits as its factorization.

12981085279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 12981085279 in words is "twelve billion, nine hundred eighty-one million, eighty-five thousand, two hundred seventy-nine".