12680523643836 has 24 divisors (see below), whose sum is σ = 29606231937744. Its totient is φ = 4224220723840.

The previous prime is 12680523643819. The next prime is 12680523643849. The reversal of 12680523643836 is 63834632508621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327541185 + ... + 327579896.

It is an arithmetic number, because the mean of its divisors is an integer number (1233592997406).

Almost surely, 2^{12680523643836} is an apocalyptic number.

It is an amenable number.

12680523643836 is an abundant number, since it is smaller than the sum of its proper divisors (16925708293908).

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

12680523643836 is a wasteful number, since it uses less digits than its factorization.

12680523643836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655122701 (or 655122699 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 57.

The spelling of 12680523643836 in words is "twelve trillion, six hundred eighty billion, five hundred twenty-three million, six hundred forty-three thousand, eight hundred thirty-six".