12728593893 has 12 divisors (see below), whose sum is σ = 17520422528. Its totient is φ = 8211294120.

The previous prime is 12728593883. The next prime is 12728593903. The reversal of 12728593893 is 39839582721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12728593883) and next prime (12728593903).

It is not a de Polignac number, because 12728593893 - 2²⁹ = 12191722981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728593883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1082158 + ... + 1093856.

Almost surely, 2^12728593893 is an apocalyptic number.

It is an amenable number.

12728593893 is a deficient number, since it is larger than the sum of its proper divisors (4791828635).

12728593893 is an frugal number, since it uses more digits than its factorization.

12728593893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23432 (or 11733 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The spelling of 12728593893 in words is "twelve billion, seven hundred twenty-eight million, five hundred ninety-three thousand, eight hundred ninety-three".