844347241457 has 2 divisors, whose sum is σ = 844347241458. Its totient is φ = 844347241456.

The previous prime is 844347241427. The next prime is 844347241471. The reversal of 844347241457 is 754142743448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 483519966736 + 360827274721 = 695356^2 + 600689^2 .

It is a cyclic number.

It is not a de Polignac number, because 844347241457 - 2¹⁰ = 844347240433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 844347241399 and 844347241408.

It is not a weakly prime, because it can be changed into another prime (844347241417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422173620728 + 422173620729.

It is an arithmetic number, because the mean of its divisors is an integer number (422173620729).

Almost surely, 2^844347241457 is an apocalyptic number.

It is an amenable number.

844347241457 is a deficient number, since it is larger than the sum of its proper divisors (1).

844347241457 is an equidigital number, since it uses as much as digits as its factorization.

844347241457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12042240, while the sum is 53.

The spelling of 844347241457 in words is "eight hundred forty-four billion, three hundred forty-seven million, two hundred forty-one thousand, four hundred fifty-seven".