12791400279 has 16 divisors (see below), whose sum is σ = 19673826048. Its totient is φ = 7241058432.

The previous prime is 12791400263. The next prime is 12791400299. The reversal of 12791400279 is 97200419721.

It is not a de Polignac number, because 12791400279 - 2⁴ = 12791400263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12791400279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791400239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2844082 + ... + 2848575.

It is an arithmetic number, because the mean of its divisors is an integer number (1229614128).

Almost surely, 2^12791400279 is an apocalyptic number.

12791400279 is a deficient number, since it is larger than the sum of its proper divisors (6882425769).

12791400279 is a wasteful number, since it uses less digits than its factorization.

12791400279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692774.

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 12791400279 in words is "twelve billion, seven hundred ninety-one million, four hundred thousand, two hundred seventy-nine".