8105904198 has 128 divisors (see below), whose sum is σ = 22002969600. Its totient is φ = 2159184384.

The previous prime is 8105904151. The next prime is 8105904223. The reversal of 8105904198 is 8914095018.

8105904198 is a `hidden beast` number, since 8 + 10 + 590 + 41 + 9 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 681688 + ... + 693476.

It is an arithmetic number, because the mean of its divisors is an integer number (171898200).

Almost surely, 2^8105904198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8105904198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11001484800).

8105904198 is an abundant number, since it is smaller than the sum of its proper divisors (13897065402).

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

8105904198 is a wasteful number, since it uses less digits than its factorization.

8105904198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11931 (or 11925 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 8105904198 is about 90032.7951248877. The cubic root of 8105904198 is about 2008.7866903377.

The spelling of 8105904198 in words is "eight billion, one hundred five million, nine hundred four thousand, one hundred ninety-eight".