8285085785 has 8 divisors (see below), whose sum is σ = 9948276360. Its totient is φ = 6623953024.

The previous prime is 8285085733. The next prime is 8285085791. The reversal of 8285085785 is 5875805828.

8285085785 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1901641 + 8283184144 = 1379^2 + 91012^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8285085785 - 2²² = 8280891481 is a prime.

It is a super-3 number, since 3×8285085785³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8285085785.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 505580 + ... + 521709.

It is an arithmetic number, because the mean of its divisors is an integer number (1243534545).

Almost surely, 2^8285085785 is an apocalyptic number.

It is an amenable number.

8285085785 is a deficient number, since it is larger than the sum of its proper divisors (1663190575).

8285085785 is a wasteful number, since it uses less digits than its factorization.

8285085785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028907.

The product of its (nonzero) digits is 7168000, while the sum is 56.

The square root of 8285085785 is about 91022.4465997262. The cubic root of 8285085785 is about 2023.4804052482.

The spelling of 8285085785 in words is "eight billion, two hundred eighty-five million, eighty-five thousand, seven hundred eighty-five".