12918845384 has 32 divisors (see below), whose sum is σ = 24429081600. Its totient is φ = 6404489280.

The previous prime is 12918845363. The next prime is 12918845393. The reversal of 12918845384 is 48354881921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2172287 + ... + 2178225.

It is an arithmetic number, because the mean of its divisors is an integer number (763408800).

Almost surely, 2^12918845384 is an apocalyptic number.

It is an amenable number.

12918845384 is a deficient number, since it is larger than the sum of its proper divisors (11510236216).

12918845384 is a wasteful number, since it uses less digits than its factorization.

12918845384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213 (or 8209 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 53.

The spelling of 12918845384 in words is "twelve billion, nine hundred eighteen million, eight hundred forty-five thousand, three hundred eighty-four".