191819002841 has 2 divisors, whose sum is σ = 191819002842. Its totient is φ = 191819002840.

The previous prime is 191819002819. The next prime is 191819002861. The reversal of 191819002841 is 148200918191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151162329616 + 40656673225 = 388796^2 + 201635^2 .

It is an emirp because it is prime and its reverse (148200918191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 191819002841 - 2¹⁸ = 191818740697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 191819002792 and 191819002801.

It is not a weakly prime, because it can be changed into another prime (191819002861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95909501420 + 95909501421.

It is an arithmetic number, because the mean of its divisors is an integer number (95909501421).

Almost surely, 2^191819002841 is an apocalyptic number.

It is an amenable number.

191819002841 is a deficient number, since it is larger than the sum of its proper divisors (1).

191819002841 is an equidigital number, since it uses as much as digits as its factorization.

191819002841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 44.

The spelling of 191819002841 in words is "one hundred ninety-one billion, eight hundred nineteen million, two thousand, eight hundred forty-one".