12561714230646 has 64 divisors (see below), whose sum is σ = 29184850192896. Its totient is φ = 3530022854400.

The previous prime is 12561714230627. The next prime is 12561714230669. The reversal of 12561714230646 is 64603241716521.

12561714230646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12561714230595 and 12561714230604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48042906 + ... + 48303666.

It is an arithmetic number, because the mean of its divisors is an integer number (456013284264).

Almost surely, 2^{12561714230646} is an apocalyptic number.

12561714230646 is an abundant number, since it is smaller than the sum of its proper divisors (16623135962250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12561714230646 is a wasteful number, since it uses less digits than its factorization.

12561714230646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279637.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 12561714230646 in words is "twelve trillion, five hundred sixty-one billion, seven hundred fourteen million, two hundred thirty thousand, six hundred forty-six".