13827878464 has 21 divisors (see below), whose sum is σ = 27441563227. Its totient is φ = 6913468864.

The previous prime is 13827878447. The next prime is 13827878479. The reversal of 13827878464 is 46487872831.

The square root of 13827878464 is 117592.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13827878399 and 13827878408.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 933387 + ... + 948085.

Almost surely, 2^13827878464 is an apocalyptic number.

13827878464 is the 117592-nd square number.

It is an amenable number.

13827878464 is a deficient number, since it is larger than the sum of its proper divisors (13613684763).

13827878464 is an frugal number, since it uses more digits than its factorization.

13827878464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29410 (or 14701 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 58.

The spelling of 13827878464 in words is "thirteen billion, eight hundred twenty-seven million, eight hundred seventy-eight thousand, four hundred sixty-four".