8643385038 has 32 divisors (see below), whose sum is σ = 19266992640. Its totient is φ = 2568931200.

The previous prime is 8643385033. The next prime is 8643385039. The reversal of 8643385038 is 8305833468.

8643385038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8643385038² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8643385031) 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 15 ways as a sum of consecutive naturals, for example, 2228038 + ... + 2231913.

It is an arithmetic number, because the mean of its divisors is an integer number (602093520).

Almost surely, 2^8643385038 is an apocalyptic number.

8643385038 is an abundant number, since it is smaller than the sum of its proper divisors (10623607602).

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

8643385038 is a wasteful number, since it uses less digits than its factorization.

8643385038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459992.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The square root of 8643385038 is about 92969.8071311326. The cubic root of 8643385038 is about 2052.2390794283.

The spelling of 8643385038 in words is "eight billion, six hundred forty-three million, three hundred eighty-five thousand, thirty-eight".