14504421621 has 32 divisors (see below), whose sum is σ = 20749639680. Its totient is φ = 8989833600.

The previous prime is 14504421593. The next prime is 14504421629. The reversal of 14504421621 is 12612440541.

It is not a de Polignac number, because 14504421621 - 2⁹ = 14504421109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14504421629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 757200 + ... + 776118.

It is an arithmetic number, because the mean of its divisors is an integer number (648426240).

Almost surely, 2^14504421621 is an apocalyptic number.

It is an amenable number.

14504421621 is a deficient number, since it is larger than the sum of its proper divisors (6245218059).

14504421621 is a wasteful number, since it uses less digits than its factorization.

14504421621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19257.

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 14504421621 in words is "fourteen billion, five hundred four million, four hundred twenty-one thousand, six hundred twenty-one".