12535302728 has 32 divisors (see below), whose sum is σ = 25386848760. Its totient is φ = 5768340480.

The previous prime is 12535302727. The next prime is 12535302761. The reversal of 12535302728 is 82720353521.

It can be written as a sum of positive squares in 4 ways, for example, as 8274085444 + 4261217284 = 90962^2 + 65278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12535302691 and 12535302700.

It is not an unprimeable number, because it can be changed into a prime (12535302727) 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, 143783 + ... + 213878.

Almost surely, 2^12535302728 is an apocalyptic number.

It is an amenable number.

12535302728 is an abundant number, since it is smaller than the sum of its proper divisors (12851546032).

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

12535302728 is a wasteful number, since it uses less digits than its factorization.

12535302728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358017 (or 358013 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 12535302728 in words is "twelve billion, five hundred thirty-five million, three hundred two thousand, seven hundred twenty-eight".