85227282109 has 4 divisors (see below), whose sum is σ = 87530722204. Its totient is φ = 82923842016.

The previous prime is 85227282103. The next prime is 85227282121. The reversal of 85227282109 is 90128272258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71649905625 + 13577376484 = 267675^2 + 116522^2 .

It is a cyclic number.

It is not a de Polignac number, because 85227282109 - 2⁹ = 85227281597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85227282103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151719992 + ... + 1151720065.

It is an arithmetic number, because the mean of its divisors is an integer number (21882680551).

Almost surely, 2^85227282109 is an apocalyptic number.

It is an amenable number.

85227282109 is a deficient number, since it is larger than the sum of its proper divisors (2303440095).

85227282109 is a wasteful number, since it uses less digits than its factorization.

85227282109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303440094.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 85227282109 in words is "eighty-five billion, two hundred twenty-seven million, two hundred eighty-two thousand, one hundred nine".