12793419664 has 15 divisors (see below), whose sum is σ = 24788127217. Its totient is φ = 6396483616.

The previous prime is 12793419637. The next prime is 12793419677. The reversal of 12793419664 is 46691439721.

The square root of 12793419664 is 113108.

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., 4802490000 + 7990929664 = 69300^2 + 89392^2 .

It is a Duffinian number.

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, 438294 + ... + 466570.

Almost surely, 2^12793419664 is an apocalyptic number.

12793419664 is the 113108-th square number.

It is an amenable number.

12793419664 is a deficient number, since it is larger than the sum of its proper divisors (11994707553).

12793419664 is an frugal number, since it uses more digits than its factorization.

12793419664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56562 (or 28279 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The spelling of 12793419664 in words is "twelve billion, seven hundred ninety-three million, four hundred nineteen thousand, six hundred sixty-four".