12384436842 has 40 divisors (see below), whose sum is σ = 27905407200. Its totient is φ = 4105073736.

The previous prime is 12384436789. The next prime is 12384436861. The reversal of 12384436842 is 24863448321.

It is a happy number.

12384436842 is a `hidden beast` number, since 123 + 8 + 443 + 6 + 84 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 184542 + ... + 242537.

It is an arithmetic number, because the mean of its divisors is an integer number (697635180).

Almost surely, 2^12384436842 is an apocalyptic number.

12384436842 is an abundant number, since it is smaller than the sum of its proper divisors (15520970358).

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

12384436842 is a wasteful number, since it uses less digits than its factorization.

12384436842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427272 (or 427263 counting only the distinct ones).

The product of its digits is 884736, while the sum is 45.

The spelling of 12384436842 in words is "twelve billion, three hundred eighty-four million, four hundred thirty-six thousand, eight hundred forty-two".