8639018804 has 12 divisors (see below), whose sum is σ = 16281227844. Its totient is φ = 3987239424.

The previous prime is 8639018783. The next prime is 8639018827. The reversal of 8639018804 is 4088109368.

8639018804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2374612900 + 6264405904 = 48730^2 + 79148^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 83067437 + ... + 83067540.

It is an arithmetic number, because the mean of its divisors is an integer number (1356768987).

Almost surely, 2^8639018804 is an apocalyptic number.

It is an amenable number.

8639018804 is a deficient number, since it is larger than the sum of its proper divisors (7642209040).

8639018804 is a wasteful number, since it uses less digits than its factorization.

8639018804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166134994 (or 166134992 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 8639018804 is about 92946.3221650002. The cubic root of 8639018804 is about 2051.8934561474.

The spelling of 8639018804 in words is "eight billion, six hundred thirty-nine million, eighteen thousand, eight hundred four".