6785085805 has 8 divisors (see below), whose sum is σ = 8184291192. Its totient is φ = 5399943168.

The previous prime is 6785085773. The next prime is 6785085809. The reversal of 6785085805 is 5085805876.

It can be written as a sum of positive squares in 4 ways, for example, as 303386724 + 6481699081 = 17418^2 + 80509^2 .

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 6785085805 - 2⁵ = 6785085773 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 (6785085809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3514624 + ... + 3516553.

It is an arithmetic number, because the mean of its divisors is an integer number (1023036399).

Almost surely, 2^6785085805 is an apocalyptic number.

It is an amenable number.

6785085805 is a deficient number, since it is larger than the sum of its proper divisors (1399205387).

6785085805 is a wasteful number, since it uses less digits than its factorization.

6785085805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031375.

The product of its (nonzero) digits is 2688000, while the sum is 52.

The square root of 6785085805 is about 82371.6322832078. The cubic root of 6785085805 is about 1893.1503876626.

The spelling of 6785085805 in words is "six billion, seven hundred eighty-five million, eighty-five thousand, eight hundred five".