847201223441 has 2 divisors, whose sum is σ = 847201223442. Its totient is φ = 847201223440.

The previous prime is 847201223383. The next prime is 847201223443. The reversal of 847201223441 is 144322102748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491870782225 + 355330441216 = 701335^2 + 596096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-847201223441 is a prime.

Together with 847201223443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 847201223395 and 847201223404.

It is not a weakly prime, because it can be changed into another prime (847201223443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423600611720 + 423600611721.

It is an arithmetic number, because the mean of its divisors is an integer number (423600611721).

Almost surely, 2^847201223441 is an apocalyptic number.

It is an amenable number.

847201223441 is a deficient number, since it is larger than the sum of its proper divisors (1).

847201223441 is an equidigital number, since it uses as much as digits as its factorization.

847201223441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 847201223441 in words is "eight hundred forty-seven billion, two hundred one million, two hundred twenty-three thousand, four hundred forty-one".