844020226845319 has 2 divisors, whose sum is σ = 844020226845320. Its totient is φ = 844020226845318.

The previous prime is 844020226845317. The next prime is 844020226845331. The reversal of 844020226845319 is 913548622020448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 844020226845319 - 2¹ = 844020226845317 is a prime.

It is a super-2 number, since 2×844020226845319² (a number of 31 digits) contains 22 as substring.

Together with 844020226845317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844020226845317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422010113422659 + 422010113422660.

It is an arithmetic number, because the mean of its divisors is an integer number (422010113422660).

Almost surely, 2^{844020226845319} is an apocalyptic number.

844020226845319 is a deficient number, since it is larger than the sum of its proper divisors (1).

844020226845319 is an equidigital number, since it uses as much as digits as its factorization.

844020226845319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26542080, while the sum is 58.

The spelling of 844020226845319 in words is "eight hundred forty-four trillion, twenty billion, two hundred twenty-six million, eight hundred forty-five thousand, three hundred nineteen".