513965683396 has 27 divisors (see below), whose sum is σ = 988670941167. Its totient is φ = 233613596040.

The previous prime is 513965683351. The next prime is 513965683411. The reversal of 513965683396 is 693386569315.

The square root of 513965683396 is 716914.

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

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, 15755815 + ... + 15788401.

Almost surely, 2^513965683396 is an apocalyptic number.

513965683396 is the 716914-th square number.

It is an amenable number.

513965683396 is a deficient number, since it is larger than the sum of its proper divisors (474705257771).

513965683396 is an frugal number, since it uses more digits than its factorization.

513965683396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65200 (or 32600 counting only the distinct ones).

The product of its digits is 94478400, while the sum is 64.

Multiplying 513965683396 by its sum of digits (64), we get a square (32893803737344 = 5735312²).

The spelling of 513965683396 in words is "five hundred thirteen billion, nine hundred sixty-five million, six hundred eighty-three thousand, three hundred ninety-six".