12981085296 has 20 divisors (see below), whose sum is σ = 33534470472. Its totient is φ = 4327028416.

The previous prime is 12981085289. The next prime is 12981085303. The reversal of 12981085296 is 69258018921.

It is an interprime number because it is at equal distance from previous prime (12981085289) and next prime (12981085303).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135219591 + ... + 135219686.

Almost surely, 2^12981085296 is an apocalyptic number.

12981085296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12981085296 is an abundant number, since it is smaller than the sum of its proper divisors (20553385176).

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

12981085296 is a wasteful number, since it uses less digits than its factorization.

12981085296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270439288 (or 270439282 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 12981085296 in words is "twelve billion, nine hundred eighty-one million, eighty-five thousand, two hundred ninety-six".