8113785085 has 16 divisors (see below), whose sum is σ = 11134224000. Its totient is φ = 5560364736.

The previous prime is 8113784977. The next prime is 8113785089. The reversal of 8113785085 is 5805873118.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8113785085 - 2¹³ = 8113776893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8113785089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11035 + ... + 127864.

It is an arithmetic number, because the mean of its divisors is an integer number (695889000).

Almost surely, 2^8113785085 is an apocalyptic number.

It is an amenable number.

8113785085 is a deficient number, since it is larger than the sum of its proper divisors (3020438915).

8113785085 is a wasteful number, since it uses less digits than its factorization.

8113785085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140580.

The product of its (nonzero) digits is 268800, while the sum is 46.

The square root of 8113785085 is about 90076.5512494789. The cubic root of 8113785085 is about 2009.4374872868.

The spelling of 8113785085 in words is "eight billion, one hundred thirteen million, seven hundred eighty-five thousand, eighty-five".