14334191621 has 2 divisors, whose sum is σ = 14334191622. Its totient is φ = 14334191620.

The previous prime is 14334191593. The next prime is 14334191623. The reversal of 14334191621 is 12619143341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9714270721 + 4619920900 = 98561^2 + 67970^2 .

It is a cyclic number.

It is not a de Polignac number, because 14334191621 - 2¹⁴ = 14334175237 is a prime.

It is a Sophie Germain prime.

Together with 14334191623, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14334191623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7167095810 + 7167095811.

It is an arithmetic number, because the mean of its divisors is an integer number (7167095811).

Almost surely, 2^14334191621 is an apocalyptic number.

It is an amenable number.

14334191621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14334191621 is an equidigital number, since it uses as much as digits as its factorization.

14334191621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The spelling of 14334191621 in words is "fourteen billion, three hundred thirty-four million, one hundred ninety-one thousand, six hundred twenty-one".