850842052889 has 2 divisors, whose sum is σ = 850842052890. Its totient is φ = 850842052888.

The previous prime is 850842052873. The next prime is 850842052897. The reversal of 850842052889 is 988250248058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 849591723289 + 1250329600 = 921733^2 + 35360^2 .

It is a cyclic number.

It is not a de Polignac number, because 850842052889 - 2⁴ = 850842052873 is a prime.

It is not a weakly prime, because it can be changed into another prime (850842052829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425421026444 + 425421026445.

It is an arithmetic number, because the mean of its divisors is an integer number (425421026445).

Almost surely, 2^850842052889 is an apocalyptic number.

It is an amenable number.

850842052889 is a deficient number, since it is larger than the sum of its proper divisors (1).

850842052889 is an equidigital number, since it uses as much as digits as its factorization.

850842052889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14745600, while the sum is 59.

The spelling of 850842052889 in words is "eight hundred fifty billion, eight hundred forty-two million, fifty-two thousand, eight hundred eighty-nine".