12728837072 has 40 divisors (see below), whose sum is σ = 28193183616. Its totient is φ = 5453686656.

The previous prime is 12728837071. The next prime is 12728837131. The reversal of 12728837072 is 27073882721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728837071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444533 + ... + 472299.

Almost surely, 2^12728837072 is an apocalyptic number.

It is an amenable number.

12728837072 is an abundant number, since it is smaller than the sum of its proper divisors (15464346544).

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

12728837072 is a wasteful number, since it uses less digits than its factorization.

12728837072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31875 (or 31869 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 12728837072 in words is "twelve billion, seven hundred twenty-eight million, eight hundred thirty-seven thousand, seventy-two".