8921031042 has 96 divisors (see below), whose sum is σ = 22669182720. Its totient is φ = 2314357920.

The previous prime is 8921031029. The next prime is 8921031059. The reversal of 8921031042 is 2401301298.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5105613 + ... + 5107359.

It is an arithmetic number, because the mean of its divisors is an integer number (236137320).

Almost surely, 2^8921031042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8921031042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11334591360).

8921031042 is an abundant number, since it is smaller than the sum of its proper divisors (13748151678).

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

8921031042 is a wasteful number, since it uses less digits than its factorization.

8921031042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356 (or 3349 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8921031042 is about 94451.2098493185. The cubic root of 8921031042 is about 2073.9821624035.

The spelling of 8921031042 in words is "eight billion, nine hundred twenty-one million, thirty-one thousand, forty-two".