8641242198 has 12 divisors (see below), whose sum is σ = 18722691468. Its totient is φ = 2880414060.

The previous prime is 8641242191. The next prime is 8641242229. The reversal of 8641242198 is 8912421468.

8641242198 is a `hidden beast` number, since 8 + 6 + 412 + 42 + 198 = 666.

It is a super-3 number, since 3×8641242198³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8641242191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240034488 + ... + 240034523.

It is an arithmetic number, because the mean of its divisors is an integer number (1560224289).

Almost surely, 2^8641242198 is an apocalyptic number.

8641242198 is an abundant number, since it is smaller than the sum of its proper divisors (10081449270).

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

8641242198 is a wasteful number, since it uses less digits than its factorization.

8641242198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480069019 (or 480069016 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 8641242198 is about 92958.2820301666. The cubic root of 8641242198 is about 2052.0694705913.

The spelling of 8641242198 in words is "eight billion, six hundred forty-one million, two hundred forty-two thousand, one hundred ninety-eight".