12431569444 has 24 divisors (see below), whose sum is σ = 25095510720. Its totient is φ = 5278021536.

The previous prime is 12431569433. The next prime is 12431569477. The reversal of 12431569444 is 44496513421.

12431569444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12431569444.

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 7 ways as a sum of consecutive naturals, for example, 2071699 + ... + 2077690.

It is an arithmetic number, because the mean of its divisors is an integer number (1045646280).

Almost surely, 2^12431569444 is an apocalyptic number.

12431569444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12431569444 is an abundant number, since it is smaller than the sum of its proper divisors (12663941276).

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

12431569444 is a wasteful number, since it uses less digits than its factorization.

12431569444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149507 (or 4149505 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 12431569444 in words is "twelve billion, four hundred thirty-one million, five hundred sixty-nine thousand, four hundred forty-four".