14326398521 has 2 divisors, whose sum is σ = 14326398522. Its totient is φ = 14326398520.

The previous prime is 14326398511. The next prime is 14326398587. The reversal of 14326398521 is 12589362341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13721779600 + 604618921 = 117140^2 + 24589^2 .

It is an emirp because it is prime and its reverse (12589362341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14326398521 - 2¹⁰ = 14326397497 is a prime.

It is not a weakly prime, because it can be changed into another prime (14326398511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7163199260 + 7163199261.

It is an arithmetic number, because the mean of its divisors is an integer number (7163199261).

Almost surely, 2^14326398521 is an apocalyptic number.

It is an amenable number.

14326398521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14326398521 is an equidigital number, since it uses as much as digits as its factorization.

14326398521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The spelling of 14326398521 in words is "fourteen billion, three hundred twenty-six million, three hundred ninety-eight thousand, five hundred twenty-one".