8642503803 has 16 divisors (see below), whose sum is σ = 11600050176. Its totient is φ = 5723430720.

The previous prime is 8642503787. The next prime is 8642503811. The reversal of 8642503803 is 3083052468.

8642503803 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8642503803 - 2⁴ = 8642503787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8642503813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286926 + ... + 315612.

It is an arithmetic number, because the mean of its divisors is an integer number (725003136).

Almost surely, 2^8642503803 is an apocalyptic number.

8642503803 is a deficient number, since it is larger than the sum of its proper divisors (2957546373).

8642503803 is a wasteful number, since it uses less digits than its factorization.

8642503803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29354.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 8642503803 is about 92965.0676490906. The cubic root of 8642503803 is about 2052.1693318174.

The spelling of 8642503803 in words is "eight billion, six hundred forty-two million, five hundred three thousand, eight hundred three".