14444458581 has 24 divisors (see below), whose sum is σ = 22516276800. Its totient is φ = 8212482432.

The previous prime is 14444458579. The next prime is 14444458619. The reversal of 14444458581 is 18585444441.

It is not a de Polignac number, because 14444458581 - 2¹ = 14444458579 is a prime.

It is a super-2 number, since 2×14444458581² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14444458581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14444458531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217636 + ... + 276141.

It is an arithmetic number, because the mean of its divisors is an integer number (938178200).

Almost surely, 2^14444458581 is an apocalyptic number.

It is an amenable number.

14444458581 is a deficient number, since it is larger than the sum of its proper divisors (8071818219).

14444458581 is a wasteful number, since it uses less digits than its factorization.

14444458581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493993 (or 493986 counting only the distinct ones).

The product of its digits is 1638400, while the sum is 48.

The spelling of 14444458581 in words is "fourteen billion, four hundred forty-four million, four hundred fifty-eight thousand, five hundred eighty-one".