800108018 has 4 divisors (see below), whose sum is σ = 1200162030. Its totient is φ = 400054008.

The previous prime is 800108003. The next prime is 800108039. The reversal of 800108018 is 810801008.

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

It can be written as a sum of positive squares in only one way, i.e., 649383289 + 150724729 = 25483^2 + 12277^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200027003 + ... + 200027006.

Almost surely, 2^800108018 is an apocalyptic number.

800108018 is a deficient number, since it is larger than the sum of its proper divisors (400054012).

800108018 is a wasteful number, since it uses less digits than its factorization.

800108018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400054011.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 800108018 is about 28286.1806895169. The cubic root of 800108018 is about 928.3595461041.

The spelling of 800108018 in words is "eight hundred million, one hundred eight thousand, eighteen".