8189198605 has 16 divisors (see below), whose sum is σ = 11891543040. Its totient is φ = 5285129472.

The previous prime is 8189198587. The next prime is 8189198609. The reversal of 8189198605 is 5068919818.

It is not a de Polignac number, because 8189198605 - 2⁵ = 8189198573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8189198609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6881085 + ... + 6882274.

It is an arithmetic number, because the mean of its divisors is an integer number (743221440).

Almost surely, 2^8189198605 is an apocalyptic number.

8189198605 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8189198605 is a deficient number, since it is larger than the sum of its proper divisors (3702344435).

8189198605 is a wasteful number, since it uses less digits than its factorization.

8189198605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13763388.

The product of its (nonzero) digits is 1244160, while the sum is 55.

The square root of 8189198605 is about 90494.1910014118. The cubic root of 8189198605 is about 2015.6438660991.

The spelling of 8189198605 in words is "eight billion, one hundred eighty-nine million, one hundred ninety-eight thousand, six hundred five".