841398140417 has 2 divisors, whose sum is σ = 841398140418. Its totient is φ = 841398140416.

The previous prime is 841398140381. The next prime is 841398140423. The reversal of 841398140417 is 714041893148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501364541041 + 340033599376 = 708071^2 + 583124^2 .

It is a cyclic number.

It is not a de Polignac number, because 841398140417 - 2⁶ = 841398140353 is a prime.

It is not a weakly prime, because it can be changed into another prime (841398140477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420699070208 + 420699070209.

It is an arithmetic number, because the mean of its divisors is an integer number (420699070209).

Almost surely, 2^841398140417 is an apocalyptic number.

It is an amenable number.

841398140417 is a deficient number, since it is larger than the sum of its proper divisors (1).

841398140417 is an equidigital number, since it uses as much as digits as its factorization.

841398140417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 841398140417 in words is "eight hundred forty-one billion, three hundred ninety-eight million, one hundred forty thousand, four hundred seventeen".