6459516909 has 16 divisors (see below), whose sum is σ = 9700748800. Its totient is φ = 4247352288.

The previous prime is 6459516893. The next prime is 6459516929. The reversal of 6459516909 is 9096159546.

It is not a de Polignac number, because 6459516909 - 2⁴ = 6459516893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6459516929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636669 + ... + 1640610.

It is an arithmetic number, because the mean of its divisors is an integer number (606296800).

Almost surely, 2^6459516909 is an apocalyptic number.

It is an amenable number.

6459516909 is a deficient number, since it is larger than the sum of its proper divisors (3241231891).

6459516909 is a wasteful number, since it uses less digits than its factorization.

6459516909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277361 (or 3277355 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The square root of 6459516909 is about 80371.1198690176. The cubic root of 6459516909 is about 1862.3730558886.

The spelling of 6459516909 in words is "six billion, four hundred fifty-nine million, five hundred sixteen thousand, nine hundred nine".