12728352852 has 48 divisors (see below), whose sum is σ = 34736251200. Its totient is φ = 4019479200.

The previous prime is 12728352839. The next prime is 12728352859. The reversal of 12728352852 is 25825382721.

12728352852 is a `hidden beast` number, since 1 + 2 + 72 + 8 + 3 + 528 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12728352798 and 12728352807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728352859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3099399 + ... + 3103502.

It is an arithmetic number, because the mean of its divisors is an integer number (723671900).

Almost surely, 2^12728352852 is an apocalyptic number.

12728352852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12728352852 is an abundant number, since it is smaller than the sum of its proper divisors (22007898348).

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

12728352852 is a wasteful number, since it uses less digits than its factorization.

12728352852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202933 (or 6202925 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The spelling of 12728352852 in words is "twelve billion, seven hundred twenty-eight million, three hundred fifty-two thousand, eight hundred fifty-two".