8084642218 has 8 divisors (see below), whose sum is σ = 12170743812. Its totient is φ = 4027727616.

The previous prime is 8084642173. The next prime is 8084642233. The reversal of 8084642218 is 8122464808.

It can be written as a sum of positive squares in 2 ways, for example, as 8014367529 + 70274689 = 89523^2 + 8383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8084642218² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7296055 + ... + 7297162.

Almost surely, 2^8084642218 is an apocalyptic number.

8084642218 is a deficient number, since it is larger than the sum of its proper divisors (4086101594).

8084642218 is a wasteful number, since it uses less digits than its factorization.

8084642218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14593496.

The product of its (nonzero) digits is 196608, while the sum is 43.

The square root of 8084642218 is about 89914.6385078648. The cubic root of 8084642218 is about 2007.0287873038.

The spelling of 8084642218 in words is "eight billion, eighty-four million, six hundred forty-two thousand, two hundred eighteen".