13669818724 has 27 divisors (see below), whose sum is σ = 24404186233. Its totient is φ = 6699869072.

The previous prime is 13669818719. The next prime is 13669818739. The reversal of 13669818724 is 42781896631.

The square root of 13669818724 is 116918.

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

It can be written as a sum of positive squares in only one way, i.e., 9854532900 + 3815285824 = 99270^2 + 61768^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12392757 + ... + 12393859.

Almost surely, 2^13669818724 is an apocalyptic number.

13669818724 is the 116918-th square number.

It is an amenable number.

13669818724 is a deficient number, since it is larger than the sum of its proper divisors (10734367509).

13669818724 is an frugal number, since it uses more digits than its factorization.

13669818724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 1158 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The spelling of 13669818724 in words is "thirteen billion, six hundred sixty-nine million, eight hundred eighteen thousand, seven hundred twenty-four".