12728148172 has 12 divisors (see below), whose sum is σ = 22421772016. Its totient is φ = 6321927600.

The previous prime is 12728148163. The next prime is 12728148211. The reversal of 12728148172 is 27184182721.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10535943 + ... + 10537150.

Almost surely, 2^12728148172 is an apocalyptic number.

It is an amenable number.

12728148172 is a deficient number, since it is larger than the sum of its proper divisors (9693623844).

12728148172 is a wasteful number, since it uses less digits than its factorization.

12728148172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21073248 (or 21073246 counting only the distinct ones).

The product of its digits is 100352, while the sum is 43.

The spelling of 12728148172 in words is "twelve billion, seven hundred twenty-eight million, one hundred forty-eight thousand, one hundred seventy-two".