13618914976 has 24 divisors (see below), whose sum is σ = 26816729940. Its totient is φ = 6808316928.

The previous prime is 13618914887. The next prime is 13618914989. The reversal of 13618914976 is 67941981631.

It can be written as a sum of positive squares in 2 ways, for example, as 9895474576 + 3723440400 = 99476^2 + 61020^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178110 + ... + 242818.

Almost surely, 2^13618914976 is an apocalyptic number.

13618914976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13618914976 is a deficient number, since it is larger than the sum of its proper divisors (13197814964).

13618914976 is an equidigital number, since it uses as much as digits as its factorization.

13618914976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71296 (or 71288 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 55.

The spelling of 13618914976 in words is "thirteen billion, six hundred eighteen million, nine hundred fourteen thousand, nine hundred seventy-six".