6416513309 has 2 divisors, whose sum is σ = 6416513310. Its totient is φ = 6416513308.

The previous prime is 6416513293. The next prime is 6416513347. The reversal of 6416513309 is 9033156146.

It is an a-pointer prime, because the next prime (6416513347) can be obtained adding 6416513309 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5745185209 + 671328100 = 75797^2 + 25910^2 .

It is a cyclic number.

It is not a de Polignac number, because 6416513309 - 2⁴ = 6416513293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6416513399) 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, 3208256654 + 3208256655.

It is an arithmetic number, because the mean of its divisors is an integer number (3208256655).

Almost surely, 2^6416513309 is an apocalyptic number.

It is an amenable number.

6416513309 is a deficient number, since it is larger than the sum of its proper divisors (1).

6416513309 is an equidigital number, since it uses as much as digits as its factorization.

6416513309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 6416513309 is about 80103.1416924455. The cubic root of 6416513309 is about 1858.2309951638.

The spelling of 6416513309 in words is "six billion, four hundred sixteen million, five hundred thirteen thousand, three hundred nine".