85795682281 has 3 divisors (see below), whose sum is σ = 85795975191. Its totient is φ = 85795389372.

The previous prime is 85795682249. The next prime is 85795682293. The reversal of 85795682281 is 18228659758.

The square root of 85795682281 is 292909.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 7317262681 + 78478419600 = 85541^2 + 280140^2 .

It is not a de Polignac number, because 85795682281 - 2⁵ = 85795682249 is a prime.

It is a super-2 number, since 2×85795682281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85795682201) 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 2 ways as a sum of consecutive naturals, for example, 146455 + ... + 439363.

It is an arithmetic number, because the mean of its divisors is an integer number (28598658397).

Almost surely, 2^85795682281 is an apocalyptic number.

85795682281 is the 292909-th square number.

85795682281 is the 146455-th centered octagonal number.

It is an amenable number.

85795682281 is a deficient number, since it is larger than the sum of its proper divisors (292910).

85795682281 is an frugal number, since it uses more digits than its factorization.

85795682281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585818 (or 292909 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 61.

The spelling of 85795682281 in words is "eighty-five billion, seven hundred ninety-five million, six hundred eighty-two thousand, two hundred eighty-one".