14005663943 has 4 divisors (see below), whose sum is σ = 14009576448. Its totient is φ = 14001751440.

The previous prime is 14005663921. The next prime is 14005663949. The reversal of 14005663943 is 34936650041.

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 14005663943 - 2¹⁰ = 14005662919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14005663943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14005663949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950878 + ... + 1958043.

It is an arithmetic number, because the mean of its divisors is an integer number (3502394112).

Almost surely, 2^14005663943 is an apocalyptic number.

14005663943 is a deficient number, since it is larger than the sum of its proper divisors (3912505).

14005663943 is an equidigital number, since it uses as much as digits as its factorization.

14005663943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912504.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 14005663943 in words is "fourteen billion, five million, six hundred sixty-three thousand, nine hundred forty-three".