8218418207 has 4 divisors (see below), whose sum is σ = 8440537656. Its totient is φ = 7996298760.

The previous prime is 8218418189. The next prime is 8218418209. The reversal of 8218418207 is 7028148128.

8218418207 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8218418207 - 2¹² = 8218414111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218418209) 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, 111059669 + ... + 111059742.

It is an arithmetic number, because the mean of its divisors is an integer number (2110134414).

Almost surely, 2^8218418207 is an apocalyptic number.

8218418207 is a deficient number, since it is larger than the sum of its proper divisors (222119449).

8218418207 is a wasteful number, since it uses less digits than its factorization.

8218418207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222119448.

The product of its (nonzero) digits is 57344, while the sum is 41.

The square root of 8218418207 is about 90655.4918744584. The cubic root of 8218418207 is about 2018.0383373312.

The spelling of 8218418207 in words is "eight billion, two hundred eighteen million, four hundred eighteen thousand, two hundred seven".