12306186828 has 72 divisors (see below), whose sum is σ = 34405633808. Its totient is φ = 3684175488.

The previous prime is 12306186821. The next prime is 12306186829. The reversal of 12306186828 is 82868160321.

12306186828 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 618 + 6 + 8 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (12306186821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338026 + ... + 372657.

Almost surely, 2^12306186828 is an apocalyptic number.

12306186828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12306186828 is an abundant number, since it is smaller than the sum of its proper divisors (22099446980).

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

12306186828 is a wasteful number, since it uses less digits than its factorization.

12306186828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710743 (or 710738 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 12306186828 in words is "twelve billion, three hundred six million, one hundred eighty-six thousand, eight hundred twenty-eight".