14320621529 has 2 divisors, whose sum is σ = 14320621530. Its totient is φ = 14320621528.

The previous prime is 14320621477. The next prime is 14320621561. The reversal of 14320621529 is 92512602341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7637886025 + 6682735504 = 87395^2 + 81748^2 .

It is an emirp because it is prime and its reverse (92512602341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14320621529 is a prime.

It is not a weakly prime, because it can be changed into another prime (14320621429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7160310764 + 7160310765.

It is an arithmetic number, because the mean of its divisors is an integer number (7160310765).

Almost surely, 2^14320621529 is an apocalyptic number.

It is an amenable number.

14320621529 is a deficient number, since it is larger than the sum of its proper divisors (1).

14320621529 is an equidigital number, since it uses as much as digits as its factorization.

14320621529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 14320621529 in words is "fourteen billion, three hundred twenty million, six hundred twenty-one thousand, five hundred twenty-nine".