12999011268 has 24 divisors (see below), whose sum is σ = 30333251872. Its totient is φ = 4332685824.

The previous prime is 12999011261. The next prime is 12999011321. The reversal of 12999011268 is 86211099921.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12999011261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178596 + ... + 240612.

Almost surely, 2^12999011268 is an apocalyptic number.

It is an amenable number.

12999011268 is an abundant number, since it is smaller than the sum of its proper divisors (17334240604).

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

12999011268 is a wasteful number, since it uses less digits than its factorization.

12999011268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79491 (or 79489 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 48.

The spelling of 12999011268 in words is "twelve billion, nine hundred ninety-nine million, eleven thousand, two hundred sixty-eight".