8685049578 has 16 divisors (see below), whose sum is σ = 17371561440. Its totient is φ = 2894772816.

The previous prime is 8685049577. The next prime is 8685049589. The reversal of 8685049578 is 8759405868.

8685049578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8685049577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25776 + ... + 134292.

It is an arithmetic number, because the mean of its divisors is an integer number (1085722590).

Almost surely, 2^8685049578 is an apocalyptic number.

8685049578 is an abundant number, since it is smaller than the sum of its proper divisors (8686511862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8685049578 is a wasteful number, since it uses less digits than its factorization.

8685049578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121861.

The product of its (nonzero) digits is 19353600, while the sum is 60.

The square root of 8685049578 is about 93193.6133970563. The cubic root of 8685049578 is about 2055.5313302193.

The spelling of 8685049578 in words is "eight billion, six hundred eighty-five million, forty-nine thousand, five hundred seventy-eight".