14550409691 has 2 divisors, whose sum is σ = 14550409692. Its totient is φ = 14550409690.

The previous prime is 14550409669. The next prime is 14550409693. The reversal of 14550409691 is 19690405541.

It is a strong prime.

It is an emirp because it is prime and its reverse (19690405541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14550409691 - 2¹⁰ = 14550408667 is a prime.

Together with 14550409693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14550409693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7275204845 + 7275204846.

It is an arithmetic number, because the mean of its divisors is an integer number (7275204846).

Almost surely, 2^14550409691 is an apocalyptic number.

14550409691 is a deficient number, since it is larger than the sum of its proper divisors (1).

14550409691 is an equidigital number, since it uses as much as digits as its factorization.

14550409691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 14550409691 in words is "fourteen billion, five hundred fifty million, four hundred nine thousand, six hundred ninety-one".