13730683684 has 27 divisors (see below), whose sum is σ = 24646303731. Its totient is φ = 6693207360.

The previous prime is 13730683639. The next prime is 13730683699. The reversal of 13730683684 is 48638603731.

It is a happy number.

The square root of 13730683684 is 117178.

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

It can be written as a sum of positive squares in 4 ways, for example, as 10758253284 + 2972430400 = 103722^2 + 54520^2 .

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, 9607882 + ... + 9609310.

Almost surely, 2^13730683684 is an apocalyptic number.

13730683684 is the 117178-th square number.

It is an amenable number.

13730683684 is a deficient number, since it is larger than the sum of its proper divisors (10915620047).

13730683684 is an frugal number, since it uses more digits than its factorization.

13730683684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

Multiplying 13730683684 by its sum of digits (49), we get a square (672803500516 = 820246²).

The spelling of 13730683684 in words is "thirteen billion, seven hundred thirty million, six hundred eighty-three thousand, six hundred eighty-four".