8518350917 has 4 divisors (see below), whose sum is σ = 8657996076. Its totient is φ = 8378705760.

The previous prime is 8518350913. The next prime is 8518350941. The reversal of 8518350917 is 7190538158.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2682307681 + 5836043236 = 51791^2 + 76394^2 .

It is a cyclic number.

It is not a de Polignac number, because 8518350917 - 2² = 8518350913 is a prime.

It is a super-3 number, since 3×8518350917³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8518350913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69822488 + ... + 69822609.

It is an arithmetic number, because the mean of its divisors is an integer number (2164499019).

Almost surely, 2^8518350917 is an apocalyptic number.

It is an amenable number.

8518350917 is a deficient number, since it is larger than the sum of its proper divisors (139645159).

8518350917 is a wasteful number, since it uses less digits than its factorization.

8518350917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139645158.

The product of its (nonzero) digits is 302400, while the sum is 47.

The square root of 8518350917 is about 92294.9127362933. The cubic root of 8518350917 is about 2042.2951642080.

The spelling of 8518350917 in words is "eight billion, five hundred eighteen million, three hundred fifty thousand, nine hundred seventeen".