8218667208 has 32 divisors (see below), whose sum is σ = 21628072800. Its totient is φ = 2595368448.

The previous prime is 8218667203. The next prime is 8218667209. The reversal of 8218667208 is 8027668128.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8218667201) 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 in 7 ways as a sum of consecutive naturals, for example, 9011241 + ... + 9012152.

It is an arithmetic number, because the mean of its divisors is an integer number (675877275).

Almost surely, 2^8218667208 is an apocalyptic number.

It is an amenable number.

8218667208 is an abundant number, since it is smaller than the sum of its proper divisors (13409405592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8218667208 is a wasteful number, since it uses less digits than its factorization.

8218667208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18023421 (or 18023417 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 8218667208 is about 90656.8652006013. The cubic root of 8218667208 is about 2018.0587179153.

The spelling of 8218667208 in words is "eight billion, two hundred eighteen million, six hundred sixty-seven thousand, two hundred eight".