12443544512 has 84 divisors (see below), whose sum is σ = 28758346344. Its totient is φ = 5326594560.

The previous prime is 12443544493. The next prime is 12443544521. The reversal of 12443544512 is 21544534421.

It is a happy number.

12443544512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3419558 + ... + 3423194.

It is an arithmetic number, because the mean of its divisors is an integer number (342361266).

Almost surely, 2^12443544512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12443544512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14379173172).

12443544512 is an abundant number, since it is smaller than the sum of its proper divisors (16314801832).

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

12443544512 is a wasteful number, since it uses less digits than its factorization.

12443544512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754 (or 4737 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The spelling of 12443544512 in words is "twelve billion, four hundred forty-three million, five hundred forty-four thousand, five hundred twelve".