845118198 has 40 divisors (see below), whose sum is σ = 1908648192. Its totient is φ = 279481104.

The previous prime is 845118181. The next prime is 845118227. The reversal of 845118198 is 891811548.

845118198 is a `hidden beast` number, since 8 + 451 + 1 + 8 + 198 = 666.

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, 36 + ... + 41112.

Almost surely, 2^845118198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845118198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954324096).

845118198 is an abundant number, since it is smaller than the sum of its proper divisors (1063529994).

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

845118198 is a wasteful number, since it uses less digits than its factorization.

845118198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41218 (or 41209 counting only the distinct ones).

The product of its digits is 92160, while the sum is 45.

The square root of 845118198 is about 29070.9167038124. The cubic root of 845118198 is about 945.4512735055.

The spelling of 845118198 in words is "eight hundred forty-five million, one hundred eighteen thousand, one hundred ninety-eight".