12792078728 has 128 divisors (see below), whose sum is σ = 29961550080. Its totient is φ = 5036528640.

The previous prime is 12792078667. The next prime is 12792078743. The reversal of 12792078728 is 82787029721.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 12792078728.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1389950 + ... + 1399122.

It is an arithmetic number, because the mean of its divisors is an integer number (234074610).

Almost surely, 2^12792078728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12792078728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14980775040).

12792078728 is an abundant number, since it is smaller than the sum of its proper divisors (17169471352).

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

12792078728 is a wasteful number, since it uses less digits than its factorization.

12792078728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9279 (or 9275 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 53.

The spelling of 12792078728 in words is "twelve billion, seven hundred ninety-two million, seventy-eight thousand, seven hundred twenty-eight".