14406203509 has 2 divisors, whose sum is σ = 14406203510. Its totient is φ = 14406203508.

The previous prime is 14406203447. The next prime is 14406203549. The reversal of 14406203509 is 90530260441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14333357284 + 72846225 = 119722^2 + 8535^2 .

It is a cyclic number.

It is not a de Polignac number, because 14406203509 - 2⁹ = 14406202997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14406203549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7203101754 + 7203101755.

It is an arithmetic number, because the mean of its divisors is an integer number (7203101755).

Almost surely, 2^14406203509 is an apocalyptic number.

It is an amenable number.

14406203509 is a deficient number, since it is larger than the sum of its proper divisors (1).

14406203509 is an equidigital number, since it uses as much as digits as its factorization.

14406203509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 14406203509 in words is "fourteen billion, four hundred six million, two hundred three thousand, five hundred nine".