845323689271 has 2 divisors, whose sum is σ = 845323689272. Its totient is φ = 845323689270.

The previous prime is 845323689251. The next prime is 845323689323. The reversal of 845323689271 is 172986323548.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 845323689271 - 2¹¹ = 845323687223 is a prime.

It is a super-2 number, since 2×845323689271² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845323689241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422661844635 + 422661844636.

It is an arithmetic number, because the mean of its divisors is an integer number (422661844636).

Almost surely, 2^845323689271 is an apocalyptic number.

845323689271 is a deficient number, since it is larger than the sum of its proper divisors (1).

845323689271 is an equidigital number, since it uses as much as digits as its factorization.

845323689271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 58.

The spelling of 845323689271 in words is "eight hundred forty-five billion, three hundred twenty-three million, six hundred eighty-nine thousand, two hundred seventy-one".