8078805585 has 24 divisors (see below), whose sum is σ = 14080643304. Its totient is φ = 4284887040.

The previous prime is 8078805563. The next prime is 8078805601. The reversal of 8078805585 is 5855088708.

8078805585 is a `hidden beast` number, since 8 + 0 + 7 + 8 + 80 + 558 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 191767104 + 7887038481 = 13848^2 + 88809^2 .

It is not a de Polignac number, because 8078805585 - 2⁷ = 8078805457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487792 + ... + 504081.

It is an arithmetic number, because the mean of its divisors is an integer number (586693471).

Almost surely, 2^8078805585 is an apocalyptic number.

It is an amenable number.

8078805585 is a deficient number, since it is larger than the sum of its proper divisors (6001837719).

8078805585 is a wasteful number, since it uses less digits than its factorization.

8078805585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992065 (or 992062 counting only the distinct ones).

The product of its (nonzero) digits is 3584000, while the sum is 54.

The square root of 8078805585 is about 89882.1761251918. The cubic root of 8078805585 is about 2006.5456857112.

The spelling of 8078805585 in words is "eight billion, seventy-eight million, eight hundred five thousand, five hundred eighty-five".