198481833191 has 2 divisors, whose sum is σ = 198481833192. Its totient is φ = 198481833190.

The previous prime is 198481833163. The next prime is 198481833217. The reversal of 198481833191 is 191338184891.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198481833191 - 2⁶ = 198481833127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198481833131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99240916595 + 99240916596.

It is an arithmetic number, because the mean of its divisors is an integer number (99240916596).

Almost surely, 2^198481833191 is an apocalyptic number.

198481833191 is a deficient number, since it is larger than the sum of its proper divisors (1).

198481833191 is an equidigital number, since it uses as much as digits as its factorization.

198481833191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 56.

The spelling of 198481833191 in words is "one hundred ninety-eight billion, four hundred eighty-one million, eight hundred thirty-three thousand, one hundred ninety-one".