8517218313 has 16 divisors (see below), whose sum is σ = 11399472000. Its totient is φ = 5656586880.

The previous prime is 8517218261. The next prime is 8517218327. The reversal of 8517218313 is 3138127158.

It is not a de Polignac number, because 8517218313 - 2¹⁴ = 8517201929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8517218813) 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 in 15 ways as a sum of consecutive naturals, for example, 1346428 + ... + 1352738.

It is an arithmetic number, because the mean of its divisors is an integer number (712467000).

Almost surely, 2^8517218313 is an apocalyptic number.

It is an amenable number.

8517218313 is a deficient number, since it is larger than the sum of its proper divisors (2882253687).

8517218313 is a wasteful number, since it uses less digits than its factorization.

8517218313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952.

The product of its digits is 40320, while the sum is 39.

The square root of 8517218313 is about 92288.7767445208. The cubic root of 8517218313 is about 2042.2046453497.

The spelling of 8517218313 in words is "eight billion, five hundred seventeen million, two hundred eighteen thousand, three hundred thirteen".