8465680309 has 2 divisors, whose sum is σ = 8465680310. Its totient is φ = 8465680308.

The previous prime is 8465680297. The next prime is 8465680343. The reversal of 8465680309 is 9030865648.

It is a happy number.

8465680309 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8152284100 + 313396209 = 90290^2 + 17703^2 .

It is a cyclic number.

It is not a de Polignac number, because 8465680309 - 2⁵ = 8465680277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8465687309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4232840154 + 4232840155.

It is an arithmetic number, because the mean of its divisors is an integer number (4232840155).

Almost surely, 2^8465680309 is an apocalyptic number.

It is an amenable number.

8465680309 is a deficient number, since it is larger than the sum of its proper divisors (1).

8465680309 is an equidigital number, since it uses as much as digits as its factorization.

8465680309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 8465680309 is about 92009.1316609390. The cubic root of 8465680309 is about 2038.0771569009.

The spelling of 8465680309 in words is "eight billion, four hundred sixty-five million, six hundred eighty thousand, three hundred nine".