14444551321 has 4 divisors (see below), whose sum is σ = 14484787200. Its totient is φ = 14404315444.

The previous prime is 14444551307. The next prime is 14444551327. The reversal of 14444551321 is 12315544441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12315544441 = 2423 ⋅5082767.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14444551321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14444551327) 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, 20117401 + ... + 20118118.

It is an arithmetic number, because the mean of its divisors is an integer number (3621196800).

Almost surely, 2^14444551321 is an apocalyptic number.

It is an amenable number.

14444551321 is a deficient number, since it is larger than the sum of its proper divisors (40235879).

14444551321 is an equidigital number, since it uses as much as digits as its factorization.

14444551321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40235878.

The product of its digits is 38400, while the sum is 34.

The spelling of 14444551321 in words is "fourteen billion, four hundred forty-four million, five hundred fifty-one thousand, three hundred twenty-one".