12686601250562 has 6 divisors (see below), whose sum is σ = 19029909431619. Its totient is φ = 6343298106690.

The previous prime is 12686601250559. The next prime is 12686601250627. The reversal of 12686601250562 is 26505210668621.

It can be written as a sum of positive squares in only one way, i.e., 6343300625281 + 6343300625281 = 2518591^2 + 2518591^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2518591.

It is a super-2 number, since 2×12686601250562² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12686601250562.

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, 3777887 + ... + 6296477.

Almost surely, 2^{12686601250562} is an apocalyptic number.

12686601250562 is a deficient number, since it is larger than the sum of its proper divisors (6343308181057).

12686601250562 is an frugal number, since it uses more digits than its factorization.

12686601250562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037184 (or 2518593 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

Multiplying 12686601250562 by its sum of digits (50), we get a square (634330062528100 = 25185910²).

The spelling of 12686601250562 in words is "twelve trillion, six hundred eighty-six billion, six hundred one million, two hundred fifty thousand, five hundred sixty-two".