14057319721 has 4 divisors (see below), whose sum is σ = 14089935744. Its totient is φ = 14024703700.

The previous prime is 14057319719. The next prime is 14057319733. The reversal of 14057319721 is 12791375041.

It is a happy number.

14057319721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 12791375041 = 263 ⋅48636407.

It is a cyclic number.

It is not a de Polignac number, because 14057319721 - 2¹ = 14057319719 is a prime.

It is a super-3 number, since 3×14057319721³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14057319751) 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 3 ways as a sum of consecutive naturals, for example, 16307365 + ... + 16308226.

It is an arithmetic number, because the mean of its divisors is an integer number (3522483936).

Almost surely, 2^14057319721 is an apocalyptic number.

It is an amenable number.

14057319721 is a deficient number, since it is larger than the sum of its proper divisors (32616023).

14057319721 is an equidigital number, since it uses as much as digits as its factorization.

14057319721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32616022.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 14057319721 in words is "fourteen billion, fifty-seven million, three hundred nineteen thousand, seven hundred twenty-one".