14444412421 has 4 divisors (see below), whose sum is σ = 14454233344. Its totient is φ = 14434591500.

The previous prime is 14444412383. The next prime is 14444412461. The reversal of 14444412421 is 12421444441.

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: 12421444441 = 7 ⋅1774492063.

It is a cyclic number.

It is not a de Polignac number, because 14444412421 - 2⁹ = 14444411909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14444412461) 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, 4908255 + ... + 4911196.

It is an arithmetic number, because the mean of its divisors is an integer number (3613558336).

Almost surely, 2^14444412421 is an apocalyptic number.

It is an amenable number.

14444412421 is a deficient number, since it is larger than the sum of its proper divisors (9820923).

14444412421 is an equidigital number, since it uses as much as digits as its factorization.

14444412421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9820922.

The product of its digits is 16384, while the sum is 31.

Adding to 14444412421 its reverse (12421444441), we get a palindrome (26865856862).

The spelling of 14444412421 in words is "fourteen billion, four hundred forty-four million, four hundred twelve thousand, four hundred twenty-one".