198489792196 has 36 divisors (see below), whose sum is σ = 359904758976. Its totient is φ = 95764925200.

The previous prime is 198489792187. The next prime is 198489792199. The reversal of 198489792196 is 691297984891.

It is a super-2 number, since 2×198489792196² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198489792199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469161 + ... + 785551.

It is an arithmetic number, because the mean of its divisors is an integer number (9997354416).

Almost surely, 2^198489792196 is an apocalyptic number.

It is an amenable number.

198489792196 is a deficient number, since it is larger than the sum of its proper divisors (161414966780).

198489792196 is a wasteful number, since it uses less digits than its factorization.

198489792196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316560 (or 316511 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 73.

The spelling of 198489792196 in words is "one hundred ninety-eight billion, four hundred eighty-nine million, seven hundred ninety-two thousand, one hundred ninety-six".