198285634241 has 2 divisors, whose sum is σ = 198285634242. Its totient is φ = 198285634240.

The previous prime is 198285634177. The next prime is 198285634243. The reversal of 198285634241 is 142436582891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131336659216 + 66948975025 = 362404^2 + 258745^2 .

It is a cyclic number.

It is not a de Polignac number, because 198285634241 - 2⁶ = 198285634177 is a prime.

Together with 198285634243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198285634243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99142817120 + 99142817121.

It is an arithmetic number, because the mean of its divisors is an integer number (99142817121).

Almost surely, 2^198285634241 is an apocalyptic number.

It is an amenable number.

198285634241 is a deficient number, since it is larger than the sum of its proper divisors (1).

198285634241 is an equidigital number, since it uses as much as digits as its factorization.

198285634241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 53.

The spelling of 198285634241 in words is "one hundred ninety-eight billion, two hundred eighty-five million, six hundred thirty-four thousand, two hundred forty-one".