12728493046272 has 80 divisors (see below), whose sum is σ = 33915803803200. Its totient is φ = 4242042396672.

The previous prime is 12728493046267. The next prime is 12728493046307. The reversal of 12728493046272 is 27264039482721.

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, 7525428 + ... + 9060300.

It is an arithmetic number, because the mean of its divisors is an integer number (423947547540).

Almost surely, 2^{12728493046272} is an apocalyptic number.

12728493046272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12728493046272 is an abundant number, since it is smaller than the sum of its proper divisors (21187310756928).

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

12728493046272 is an equidigital number, since it uses as much as digits as its factorization.

12728493046272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540293 (or 1540277 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 12728493046272 in words is "twelve trillion, seven hundred twenty-eight billion, four hundred ninety-three million, forty-six thousand, two hundred seventy-two".