198798822107 has 2 divisors, whose sum is σ = 198798822108. Its totient is φ = 198798822106.

The previous prime is 198798822077. The next prime is 198798822139. The reversal of 198798822107 is 701228897891.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198798822107 is a prime.

It is a super-2 number, since 2×198798822107² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198798822107.

It is not a weakly prime, because it can be changed into another prime (198798822007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99399411053 + 99399411054.

It is an arithmetic number, because the mean of its divisors is an integer number (99399411054).

Almost surely, 2^198798822107 is an apocalyptic number.

198798822107 is a deficient number, since it is larger than the sum of its proper divisors (1).

198798822107 is an equidigital number, since it uses as much as digits as its factorization.

198798822107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 62.

The spelling of 198798822107 in words is "one hundred ninety-eight billion, seven hundred ninety-eight million, eight hundred twenty-two thousand, one hundred seven".