198093409061 has 8 divisors (see below), whose sum is σ = 205203807480. Its totient is φ = 191001650112.

The previous prime is 198093409037. The next prime is 198093409067. The reversal of 198093409061 is 160904390891.

198093409061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 77774612161 + 120318796900 = 278881^2 + 346870^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198093409061 - 2¹⁴ = 198093392677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198093409067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4638230 + ... + 4680743.

It is an arithmetic number, because the mean of its divisors is an integer number (25650475935).

Almost surely, 2^198093409061 is an apocalyptic number.

It is an amenable number.

198093409061 is a deficient number, since it is larger than the sum of its proper divisors (7110398419).

198093409061 is an equidigital number, since it uses as much as digits as its factorization.

198093409061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319735.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 198093409061 in words is "one hundred ninety-eight billion, ninety-three million, four hundred nine thousand, sixty-one".