14493988309 has 2 divisors, whose sum is σ = 14493988310. Its totient is φ = 14493988308.

The previous prime is 14493988297. The next prime is 14493988343. The reversal of 14493988309 is 90388939441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8690900625 + 5803087684 = 93225^2 + 76178^2 .

It is a cyclic number.

It is not a de Polignac number, because 14493988309 - 2⁵ = 14493988277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14493988349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7246994154 + 7246994155.

It is an arithmetic number, because the mean of its divisors is an integer number (7246994155).

Almost surely, 2^14493988309 is an apocalyptic number.

It is an amenable number.

14493988309 is a deficient number, since it is larger than the sum of its proper divisors (1).

14493988309 is an equidigital number, since it uses as much as digits as its factorization.

14493988309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 14493988309 in words is "fourteen billion, four hundred ninety-three million, nine hundred eighty-eight thousand, three hundred nine".