12980243766 has 24 divisors (see below), whose sum is σ = 30198935160. Its totient is φ = 3708640992.

The previous prime is 12980243747. The next prime is 12980243779. The reversal of 12980243766 is 66734208921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22074951 + ... + 22075538.

It is an arithmetic number, because the mean of its divisors is an integer number (1258288965).

Almost surely, 2^12980243766 is an apocalyptic number.

12980243766 is an abundant number, since it is smaller than the sum of its proper divisors (17218691394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12980243766 is a wasteful number, since it uses less digits than its factorization.

12980243766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44150508 (or 44150501 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 12980243766 in words is "twelve billion, nine hundred eighty million, two hundred forty-three thousand, seven hundred sixty-six".