198195535773 has 16 divisors (see below), whose sum is σ = 293649146560. Its totient is φ = 132118598448.

The previous prime is 198195535757. The next prime is 198195535849. The reversal of 198195535773 is 377535591891.

198195535773 is a `hidden beast` number, since 1 + 9 + 8 + 1 + 9 + 5 + 53 + 577 + 3 = 666.

It is not a de Polignac number, because 198195535773 - 2⁴ = 198195535757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198195535773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198195535073) 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, 12115 + ... + 629712.

It is an arithmetic number, because the mean of its divisors is an integer number (18353071660).

Almost surely, 2^198195535773 is an apocalyptic number.

It is an amenable number.

198195535773 is a deficient number, since it is larger than the sum of its proper divisors (95453610787).

198195535773 is a wasteful number, since it uses less digits than its factorization.

198195535773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653273 (or 653267 counting only the distinct ones).

The product of its digits is 35721000, while the sum is 63.

The spelling of 198195535773 in words is "one hundred ninety-eight billion, one hundred ninety-five million, five hundred thirty-five thousand, seven hundred seventy-three".