194502430841 has 2 divisors, whose sum is σ = 194502430842. Its totient is φ = 194502430840.

The previous prime is 194502430723. The next prime is 194502430849. The reversal of 194502430841 is 148034205491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179674254400 + 14828176441 = 423880^2 + 121771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194502430841 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (194502430849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97251215420 + 97251215421.

It is an arithmetic number, because the mean of its divisors is an integer number (97251215421).

Almost surely, 2^194502430841 is an apocalyptic number.

It is an amenable number.

194502430841 is a deficient number, since it is larger than the sum of its proper divisors (1).

194502430841 is an equidigital number, since it uses as much as digits as its factorization.

194502430841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 194502430841 in words is "one hundred ninety-four billion, five hundred two million, four hundred thirty thousand, eight hundred forty-one".