14251403421 has 24 divisors (see below), whose sum is σ = 21255886080. Its totient is φ = 9191649600.

The previous prime is 14251403393. The next prime is 14251403423. The reversal of 14251403421 is 12430415241.

14251403421 is a `hidden beast` number, since 1 + 4 + 251 + 403 + 4 + 2 + 1 = 666.

14251403421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14251403421 - 2¹⁴ = 14251387037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14251403423) 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 23 ways as a sum of consecutive naturals, for example, 1303345 + ... + 1314233.

It is an arithmetic number, because the mean of its divisors is an integer number (885661920).

Almost surely, 2^14251403421 is an apocalyptic number.

It is an amenable number.

14251403421 is a deficient number, since it is larger than the sum of its proper divisors (7004482659).

14251403421 is a wasteful number, since it uses less digits than its factorization.

14251403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15617 (or 15614 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 14251403421 its reverse (12430415241), we get a palindrome (26681818662).

The spelling of 14251403421 in words is "fourteen billion, two hundred fifty-one million, four hundred three thousand, four hundred twenty-one".