8516308813 has 2 divisors, whose sum is σ = 8516308814. Its totient is φ = 8516308812.

The previous prime is 8516308811. The next prime is 8516308817. The reversal of 8516308813 is 3188036158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6998660964 + 1517647849 = 83658^2 + 38957^2 .

It is a cyclic number.

It is not a de Polignac number, because 8516308813 - 2¹ = 8516308811 is a prime.

Together with 8516308811, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8516308813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8516308811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4258154406 + 4258154407.

It is an arithmetic number, because the mean of its divisors is an integer number (4258154407).

Almost surely, 2^8516308813 is an apocalyptic number.

It is an amenable number.

8516308813 is a deficient number, since it is larger than the sum of its proper divisors (1).

8516308813 is an equidigital number, since it uses as much as digits as its factorization.

8516308813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 8516308813 is about 92283.8491449073. The cubic root of 8516308813 is about 2042.1319513796.

The spelling of 8516308813 in words is "eight billion, five hundred sixteen million, three hundred eight thousand, eight hundred thirteen".