14463665643 has 8 divisors (see below), whose sum is σ = 22039871488. Its totient is φ = 8264951784.

The previous prime is 14463665641. The next prime is 14463665647. The reversal of 14463665643 is 34656636441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14463665643 - 2¹ = 14463665641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14463665592 and 14463665601.

It is not an unprimeable number, because it can be changed into a prime (14463665641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344372971 + ... + 344373012.

It is an arithmetic number, because the mean of its divisors is an integer number (2754983936).

Almost surely, 2^14463665643 is an apocalyptic number.

14463665643 is a deficient number, since it is larger than the sum of its proper divisors (7576205845).

14463665643 is an equidigital number, since it uses as much as digits as its factorization.

14463665643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688745993.

The product of its digits is 3732480, while the sum is 48.

The spelling of 14463665643 in words is "fourteen billion, four hundred sixty-three million, six hundred sixty-five thousand, six hundred forty-three".