12812435656 has 16 divisors (see below), whose sum is σ = 24798263040. Its totient is φ = 6199565520.

The previous prime is 12812435549. The next prime is 12812435771. The reversal of 12812435656 is 65653421821.

12812435656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25831276 + ... + 25831771.

It is an arithmetic number, because the mean of its divisors is an integer number (1549891440).

Almost surely, 2^12812435656 is an apocalyptic number.

It is an amenable number.

12812435656 is a deficient number, since it is larger than the sum of its proper divisors (11985827384).

12812435656 is a wasteful number, since it uses less digits than its factorization.

12812435656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51663084 (or 51663080 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 12812435656 in words is "twelve billion, eight hundred twelve million, four hundred thirty-five thousand, six hundred fifty-six".