12318789444 has 48 divisors (see below), whose sum is σ = 30973854912. Its totient is φ = 3788076672.

The previous prime is 12318789383. The next prime is 12318789463. The reversal of 12318789444 is 44498781321.

12318789444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240787 + ... + 287429.

It is an arithmetic number, because the mean of its divisors is an integer number (645288644).

Almost surely, 2^12318789444 is an apocalyptic number.

It is an amenable number.

12318789444 is an abundant number, since it is smaller than the sum of its proper divisors (18655065468).

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

12318789444 is a wasteful number, since it uses less digits than its factorization.

12318789444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48356 (or 48354 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The spelling of 12318789444 in words is "twelve billion, three hundred eighteen million, seven hundred eighty-nine thousand, four hundred forty-four".