9798599188 has 18 divisors (see below), whose sum is σ = 19947148746. Its totient is φ = 4199399568.

The previous prime is 9798599159. The next prime is 9798599201. The reversal of 9798599188 is 8819958979.

It can be written as a sum of positive squares in only one way, i.e., 6873736464 + 2924862724 = 82908^2 + 54082^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9798599188.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24996231 + ... + 24996622.

Almost surely, 2^9798599188 is an apocalyptic number.

9798599188 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

9798599188 is an abundant number, since it is smaller than the sum of its proper divisors (10148549558).

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

9798599188 is a wasteful number, since it uses less digits than its factorization.

9798599188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49992871 (or 49992862 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 73.

The square root of 9798599188 is about 98987.8739442362. The cubic root of 9798599188 is about 2139.8729935979.

The spelling of 9798599188 in words is "nine billion, seven hundred ninety-eight million, five hundred ninety-nine thousand, one hundred eighty-eight".