8218677798 has 40 divisors (see below), whose sum is σ = 18458811360. Its totient is φ = 2733179760.

The previous prime is 8218677769. The next prime is 8218677823. The reversal of 8218677798 is 8977768128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10968 + ... + 128676.

It is an arithmetic number, because the mean of its divisors is an integer number (461470284).

Almost surely, 2^8218677798 is an apocalyptic number.

8218677798 is an abundant number, since it is smaller than the sum of its proper divisors (10240133562).

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

8218677798 is a wasteful number, since it uses less digits than its factorization.

8218677798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118154 (or 118145 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 63.

The square root of 8218677798 is about 90656.9236076319. The cubic root of 8218677798 is about 2018.0595846914.

The spelling of 8218677798 in words is "eight billion, two hundred eighteen million, six hundred seventy-seven thousand, seven hundred ninety-eight".