194488119281 has 2 divisors, whose sum is σ = 194488119282. Its totient is φ = 194488119280.

The previous prime is 194488119227. The next prime is 194488119283. The reversal of 194488119281 is 182911884491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163365514225 + 31122605056 = 404185^2 + 176416^2 .

It is a cyclic number.

It is not a de Polignac number, because 194488119281 - 2¹⁰ = 194488118257 is a prime.

It is a super-2 number, since 2×194488119281² (a number of 23 digits) contains 22 as substring.

Together with 194488119283, 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 (194488119283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97244059640 + 97244059641.

It is an arithmetic number, because the mean of its divisors is an integer number (97244059641).

Almost surely, 2^194488119281 is an apocalyptic number.

It is an amenable number.

194488119281 is a deficient number, since it is larger than the sum of its proper divisors (1).

194488119281 is an equidigital number, since it uses as much as digits as its factorization.

194488119281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 56.

The spelling of 194488119281 in words is "one hundred ninety-four billion, four hundred eighty-eight million, one hundred nineteen thousand, two hundred eighty-one".