7085775865 has 32 divisors (see below), whose sum is σ = 10621200384. Its totient is φ = 4425477120.

The previous prime is 7085775863. The next prime is 7085775869. The reversal of 7085775865 is 5685775807.

It is a happy number.

It is not a de Polignac number, because 7085775865 - 2¹ = 7085775863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7085775863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173634 + ... + 210523.

It is an arithmetic number, because the mean of its divisors is an integer number (331912512).

Almost surely, 2^7085775865 is an apocalyptic number.

It is an amenable number.

7085775865 is a deficient number, since it is larger than the sum of its proper divisors (3535424519).

7085775865 is a wasteful number, since it uses less digits than its factorization.

7085775865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384217.

The product of its (nonzero) digits is 16464000, while the sum is 58.

The square root of 7085775865 is about 84177.0507026707. The cubic root of 7085775865 is about 1920.7129753178.

Subtracting from 7085775865 its sum of digits (58), we obtain a palindrome (7085775807).

The spelling of 7085775865 in words is "seven billion, eighty-five million, seven hundred seventy-five thousand, eight hundred sixty-five".