14644244641 has 4 divisors (see below), whose sum is σ = 15770725012. Its totient is φ = 13517764272.

The previous prime is 14644244627. The next prime is 14644244677.

14644244641 is nontrivially palindromic in base 10.

14644244641 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 can be written as a sum of positive squares in 2 ways, for example, as 941201041 + 13703043600 = 30679^2 + 117060^2 .

It is a cyclic number.

It is not a de Polignac number, because 14644244641 - 2¹¹ = 14644242593 is a prime.

It is a super-2 number, since 2×14644244641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14644244594 and 14644244603.

It is not an unprimeable number, because it can be changed into a prime (14644244611) 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, 563240166 + ... + 563240191.

It is an arithmetic number, because the mean of its divisors is an integer number (3942681253).

Almost surely, 2^14644244641 is an apocalyptic number.

It is an amenable number.

14644244641 is a deficient number, since it is larger than the sum of its proper divisors (1126480371).

14644244641 is a wasteful number, since it uses less digits than its factorization.

14644244641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126480370.

The product of its digits is 294912, while the sum is 40.

The spelling of 14644244641 in words is "fourteen billion, six hundred forty-four million, two hundred forty-four thousand, six hundred forty-one".