194841330847 has 2 divisors, whose sum is σ = 194841330848. Its totient is φ = 194841330846.

The previous prime is 194841330833. The next prime is 194841330889. The reversal of 194841330847 is 748033148491.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194841330847 is a prime.

It is a super-2 number, since 2×194841330847² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194841330794 and 194841330803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194841330947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97420665423 + 97420665424.

It is an arithmetic number, because the mean of its divisors is an integer number (97420665424).

Almost surely, 2^194841330847 is an apocalyptic number.

194841330847 is a deficient number, since it is larger than the sum of its proper divisors (1).

194841330847 is an equidigital number, since it uses as much as digits as its factorization.

194841330847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 194841330847 in words is "one hundred ninety-four billion, eight hundred forty-one million, three hundred thirty thousand, eight hundred forty-seven".