13979744378984 has 32 divisors (see below), whose sum is σ = 26482770741000. Its totient is φ = 6917675028480.

The previous prime is 13979744378969. The next prime is 13979744379077. The reversal of 13979744378984 is 48987344797931.

It can be written as a sum of positive squares in 4 ways, for example, as 13018226854084 + 961517524900 = 3608078^2 + 980570^2 .

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, 47298092 + ... + 47592740.

Almost surely, 2^{13979744378984} is an apocalyptic number.

It is an amenable number.

13979744378984 is a deficient number, since it is larger than the sum of its proper divisors (12503026362016).

13979744378984 is a wasteful number, since it uses less digits than its factorization.

13979744378984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355893 (or 355889 counting only the distinct ones).

The product of its digits is 9217732608, while the sum is 83.

The spelling of 13979744378984 in words is "thirteen trillion, nine hundred seventy-nine billion, seven hundred forty-four million, three hundred seventy-eight thousand, nine hundred eighty-four".