8311648817 has 2 divisors, whose sum is σ = 8311648818. Its totient is φ = 8311648816.

The previous prime is 8311648799. The next prime is 8311648913. The reversal of 8311648817 is 7188461138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7078866496 + 1232782321 = 84136^2 + 35111^2 .

It is a cyclic number.

It is not a de Polignac number, because 8311648817 - 2¹⁶ = 8311583281 is a prime.

It is not a weakly prime, because it can be changed into another prime (8311648117) 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, 4155824408 + 4155824409.

It is an arithmetic number, because the mean of its divisors is an integer number (4155824409).

Almost surely, 2^8311648817 is an apocalyptic number.

It is an amenable number.

8311648817 is a deficient number, since it is larger than the sum of its proper divisors (1).

8311648817 is an equidigital number, since it uses as much as digits as its factorization.

8311648817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 47.

The square root of 8311648817 is about 91168.2445646509. The cubic root of 8311648817 is about 2025.6406095554.

The spelling of 8311648817 in words is "eight billion, three hundred eleven million, six hundred forty-eight thousand, eight hundred seventeen".