850028057522 has 18 divisors (see below), whose sum is σ = 1483228148733. Its totient is φ = 364293827352.

The previous prime is 850028057521. The next prime is 850028057537. The reversal of 850028057522 is 225750820058.

It can be written as a sum of positive squares in 2 ways, for example, as 754676175841 + 95351881681 = 868721^2 + 308791^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=651931.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850028057521) 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 in 8 ways as a sum of consecutive naturals, for example, 9080468 + ... + 9173600.

Almost surely, 2^850028057522 is an apocalyptic number.

850028057522 is a deficient number, since it is larger than the sum of its proper divisors (633200091211).

850028057522 is an frugal number, since it uses more digits than its factorization.

850028057522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186282 (or 93142 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 850028057522 in words is "eight hundred fifty billion, twenty-eight million, fifty-seven thousand, five hundred twenty-two".