14644444641 has 4 divisors (see below), whose sum is σ = 19525926192. Its totient is φ = 9762963092.

The previous prime is 14644444631. The next prime is 14644444649.

14644444641 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 14644444641 - 2¹⁷ = 14644313569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14644444593 and 14644444602.

It is not an unprimeable number, because it can be changed into a prime (14644444649) 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, 2440740771 + ... + 2440740776.

It is an arithmetic number, because the mean of its divisors is an integer number (4881481548).

Almost surely, 2^14644444641 is an apocalyptic number.

It is an amenable number.

14644444641 is a deficient number, since it is larger than the sum of its proper divisors (4881481551).

14644444641 is an equidigital number, since it uses as much as digits as its factorization.

14644444641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881481550.

The product of its digits is 589824, while the sum is 42.

The spelling of 14644444641 in words is "fourteen billion, six hundred forty-four million, four hundred forty-four thousand, six hundred forty-one".