8942641872 has 80 divisors (see below), whose sum is σ = 23617059840. Its totient is φ = 2914527616.

The previous prime is 8942641861. The next prime is 8942641943. The reversal of 8942641872 is 2781462498.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4463623 + ... + 4465625.

It is an arithmetic number, because the mean of its divisors is an integer number (295213248).

Almost surely, 2^8942641872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8942641872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11808529920).

8942641872 is an abundant number, since it is smaller than the sum of its proper divisors (14674417968).

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

8942641872 is a wasteful number, since it uses less digits than its factorization.

8942641872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040 (or 4034 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 8942641872 is about 94565.5427309546. The cubic root of 8942641872 is about 2075.6555240151.

The spelling of 8942641872 in words is "eight billion, nine hundred forty-two million, six hundred forty-one thousand, eight hundred seventy-two".