12443039718 has 32 divisors (see below), whose sum is σ = 25772651520. Its totient is φ = 4000790880.

The previous prime is 12443039701. The next prime is 12443039743. The reversal of 12443039718 is 81793034421.

It is a self number, because there is not a number n which added to its sum of digits gives 12443039718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51853 + ... + 166056.

It is an arithmetic number, because the mean of its divisors is an integer number (805395360).

Almost surely, 2^12443039718 is an apocalyptic number.

12443039718 is an abundant number, since it is smaller than the sum of its proper divisors (13329611802).

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

12443039718 is a wasteful number, since it uses less digits than its factorization.

12443039718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218252.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 12443039718 in words is "twelve billion, four hundred forty-three million, thirty-nine thousand, seven hundred eighteen".