12728956604 has 48 divisors (see below), whose sum is σ = 27616440768. Its totient is φ = 4998855168.

The previous prime is 12728956571. The next prime is 12728956613. The reversal of 12728956604 is 40665982721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77759 + ... + 177494.

It is an arithmetic number, because the mean of its divisors is an integer number (575342516).

Almost surely, 2^12728956604 is an apocalyptic number.

12728956604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12728956604 is an abundant number, since it is smaller than the sum of its proper divisors (14887484164).

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

12728956604 is a wasteful number, since it uses less digits than its factorization.

12728956604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255414 (or 255412 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 12728956604 in words is "twelve billion, seven hundred twenty-eight million, nine hundred fifty-six thousand, six hundred four".