14543518019 has 2 divisors, whose sum is σ = 14543518020. Its totient is φ = 14543518018.

The previous prime is 14543518013. The next prime is 14543518021. The reversal of 14543518019 is 91081534541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14543518019 - 2⁸ = 14543517763 is a prime.

It is a super-2 number, since 2×14543518019² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 14543518021, 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 (14543518013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7271759009 + 7271759010.

It is an arithmetic number, because the mean of its divisors is an integer number (7271759010).

Almost surely, 2^14543518019 is an apocalyptic number.

14543518019 is a deficient number, since it is larger than the sum of its proper divisors (1).

14543518019 is an equidigital number, since it uses as much as digits as its factorization.

14543518019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 14543518019 in words is "fourteen billion, five hundred forty-three million, five hundred eighteen thousand, nineteen".