14444400521 has 4 divisors (see below), whose sum is σ = 14473819344. Its totient is φ = 14414981700.

The previous prime is 14444400461. The next prime is 14444400539. The reversal of 14444400521 is 12500444441.

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 14444400521 - 2¹⁸ = 14444138377 is a prime.

It is a super-2 number, since 2×14444400521² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14444406521) 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, 14708675 + ... + 14709656.

It is an arithmetic number, because the mean of its divisors is an integer number (3618454836).

Almost surely, 2^14444400521 is an apocalyptic number.

It is an amenable number.

14444400521 is a deficient number, since it is larger than the sum of its proper divisors (29418823).

14444400521 is an equidigital number, since it uses as much as digits as its factorization.

14444400521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29418822.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 14444400521 its reverse (12500444441), we get a palindrome (26944844962).

The spelling of 14444400521 in words is "fourteen billion, four hundred forty-four million, four hundred thousand, five hundred twenty-one".