12812519573764 has 27 divisors (see below), whose sum is σ = 22696360040263. Its totient is φ = 6328782418472.

The previous prime is 12812519573753. The next prime is 12812519573839. The reversal of 12812519573764 is 46737591521821.

It is a happy number.

The square root of 12812519573764 is 3579458.

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, 594179247 + ... + 594200809.

Almost surely, 2^{12812519573764} is an apocalyptic number.

12812519573764 is the 3579458-th square number.

It is an amenable number.

12812519573764 is a deficient number, since it is larger than the sum of its proper divisors (9883840466499).

12812519573764 is an frugal number, since it uses more digits than its factorization.

12812519573764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43296 (or 21648 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 61.

The spelling of 12812519573764 in words is "twelve trillion, eight hundred twelve billion, five hundred nineteen million, five hundred seventy-three thousand, seven hundred sixty-four".