9139608198 has 24 divisors (see below), whose sum is σ = 22631411088. Its totient is φ = 2611316592.

The previous prime is 9139608091. The next prime is 9139608239. The reversal of 9139608198 is 8918069319.

9139608198 is a `hidden beast` number, since 9 + 13 + 9 + 608 + 19 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36268161 + ... + 36268412.

It is an arithmetic number, because the mean of its divisors is an integer number (942975462).

Almost surely, 2^9139608198 is an apocalyptic number.

9139608198 is an abundant number, since it is smaller than the sum of its proper divisors (13491802890).

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

9139608198 is a wasteful number, since it uses less digits than its factorization.

9139608198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72536588 (or 72536585 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 9139608198 is about 95601.2980978815. The cubic root of 9139608198 is about 2090.7841199031.

The spelling of 9139608198 in words is "nine billion, one hundred thirty-nine million, six hundred eight thousand, one hundred ninety-eight".