12668383943 has 4 divisors (see below), whose sum is σ = 12668615280. Its totient is φ = 12668152608.

The previous prime is 12668383891. The next prime is 12668383963. The reversal of 12668383943 is 34938386621.

It is a happy number.

12668383943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12668383943 - 2¹⁶ = 12668318407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668383963) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17846 + ... + 160172.

It is an arithmetic number, because the mean of its divisors is an integer number (3167153820).

Almost surely, 2^12668383943 is an apocalyptic number.

12668383943 is a deficient number, since it is larger than the sum of its proper divisors (231337).

12668383943 is an equidigital number, since it uses as much as digits as its factorization.

12668383943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231336.

The product of its digits is 4478976, while the sum is 53.

The spelling of 12668383943 in words is "twelve billion, six hundred sixty-eight million, three hundred eighty-three thousand, nine hundred forty-three".