12180643852 has 12 divisors (see below), whose sum is σ = 22955828896. Its totient is φ = 5621835600.

The previous prime is 12180643819. The next prime is 12180643873. The reversal of 12180643852 is 25834608121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117121524 + ... + 117121627.

Almost surely, 2^12180643852 is an apocalyptic number.

It is an amenable number.

12180643852 is a deficient number, since it is larger than the sum of its proper divisors (10775185044).

12180643852 is a wasteful number, since it uses less digits than its factorization.

12180643852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234243168 (or 234243166 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 12180643852 in words is "twelve billion, one hundred eighty million, six hundred forty-three thousand, eight hundred fifty-two".