12724670028 has 96 divisors (see below), whose sum is σ = 34806661120. Its totient is φ = 3543056640.

The previous prime is 12724669999. The next prime is 12724670033. The reversal of 12724670028 is 82007642721.

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, 547125 + ... + 569907.

Almost surely, 2^12724670028 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 12724670028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17403330560).

12724670028 is an abundant number, since it is smaller than the sum of its proper divisors (22081991092).

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

12724670028 is a wasteful number, since it uses less digits than its factorization.

12724670028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22967 (or 22965 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 12724670028 in words is "twelve billion, seven hundred twenty-four million, six hundred seventy thousand, twenty-eight".