8017861218 has 16 divisors (see below), whose sum is σ = 16036771296. Its totient is φ = 2672445600.

The previous prime is 8017861207. The next prime is 8017861223. The reversal of 8017861218 is 8121687108.

It is a super-2 number, since 2×8017861218² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8017861218.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84693 + ... + 152343.

It is an arithmetic number, because the mean of its divisors is an integer number (1002298206).

Almost surely, 2^8017861218 is an apocalyptic number.

8017861218 is an abundant number, since it is smaller than the sum of its proper divisors (8018910078).

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

8017861218 is a wasteful number, since it uses less digits than its factorization.

8017861218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87409.

The product of its (nonzero) digits is 43008, while the sum is 42.

The square root of 8017861218 is about 89542.5106750978. The cubic root of 8017861218 is about 2001.4873284861.

The spelling of 8017861218 in words is "eight billion, seventeen million, eight hundred sixty-one thousand, two hundred eighteen".