13988604866 has 8 divisors (see below), whose sum is σ = 20986720320. Its totient is φ = 6993031428.

The previous prime is 13988604841. The next prime is 13988604881. The reversal of 13988604866 is 66840688931.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 621686 + ... + 643793.

It is an arithmetic number, because the mean of its divisors is an integer number (2623340040).

Almost surely, 2^13988604866 is an apocalyptic number.

13988604866 is a deficient number, since it is larger than the sum of its proper divisors (6998115454).

13988604866 is a wasteful number, since it uses less digits than its factorization.

13988604866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271008.

The product of its (nonzero) digits is 11943936, while the sum is 59.

The spelling of 13988604866 in words is "thirteen billion, nine hundred eighty-eight million, six hundred four thousand, eight hundred sixty-six".