8665785938 has 16 divisors (see below), whose sum is σ = 13820429304. Its totient is φ = 4061091840.

The previous prime is 8665785929. The next prime is 8665785941. The reversal of 8665785938 is 8395875668.

It can be written as a sum of positive squares in 4 ways, for example, as 8583466609 + 82319329 = 92647^2 + 9073^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520595 + ... + 536982.

Almost surely, 2^8665785938 is an apocalyptic number.

8665785938 is a deficient number, since it is larger than the sum of its proper divisors (5154643366).

8665785938 is a wasteful number, since it uses less digits than its factorization.

8665785938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057837.

The product of its digits is 87091200, while the sum is 65.

The square root of 8665785938 is about 93090.2032332082. The cubic root of 8665785938 is about 2054.0104666163.

The spelling of 8665785938 in words is "eight billion, six hundred sixty-five million, seven hundred eighty-five thousand, nine hundred thirty-eight".