12243643434 has 96 divisors (see below), whose sum is σ = 31286324160. Its totient is φ = 3419884800.

The previous prime is 12243643427. The next prime is 12243643441. The reversal of 12243643434 is 43434634221.

12243643434 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 3 + 643 + 4 + 3 + 4 = 666.

12243643434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12243643427) and next prime (12243643441).

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 47 ways as a sum of consecutive naturals, for example, 95214 + ... + 183174.

It is an arithmetic number, because the mean of its divisors is an integer number (325899210).

Almost surely, 2^12243643434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12243643434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15643162080).

12243643434 is an abundant number, since it is smaller than the sum of its proper divisors (19042680726).

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

12243643434 is a wasteful number, since it uses less digits than its factorization.

12243643434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88036 (or 88033 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

The spelling of 12243643434 in words is "twelve billion, two hundred forty-three million, six hundred forty-three thousand, four hundred thirty-four".