12502946879 has 4 divisors (see below), whose sum is σ = 12503218680. Its totient is φ = 12502675080.

The previous prime is 12502946873. The next prime is 12502946881. The reversal of 12502946879 is 97864920521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97864920521 = 41 ⋅2386949281.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12502946879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12502946879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12502946873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47909 + ... + 165230.

It is an arithmetic number, because the mean of its divisors is an integer number (3125804670).

Almost surely, 2^12502946879 is an apocalyptic number.

12502946879 is a deficient number, since it is larger than the sum of its proper divisors (271801).

12502946879 is an equidigital number, since it uses as much as digits as its factorization.

12502946879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271800.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 12502946879 in words is "twelve billion, five hundred two million, nine hundred forty-six thousand, eight hundred seventy-nine".