12184628238 has 48 divisors (see below), whose sum is σ = 26916482736. Its totient is φ = 3982193280.

The previous prime is 12184628233. The next prime is 12184628251. The reversal of 12184628238 is 83282648121.

12184628238 is a `hidden beast` number, since 1 + 2 + 18 + 4 + 628 + 2 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12184628193 and 12184628202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12184628233) 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, 1777698 + ... + 1784538.

It is an arithmetic number, because the mean of its divisors is an integer number (560760057).

Almost surely, 2^12184628238 is an apocalyptic number.

12184628238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12184628238 is an abundant number, since it is smaller than the sum of its proper divisors (14731854498).

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

12184628238 is a wasteful number, since it uses less digits than its factorization.

12184628238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769 (or 8766 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The spelling of 12184628238 in words is "twelve billion, one hundred eighty-four million, six hundred twenty-eight thousand, two hundred thirty-eight".