8022139008 has 128 divisors (see below), whose sum is σ = 23185921920. Its totient is φ = 2442756096.

The previous prime is 8022138997. The next prime is 8022139043. The reversal of 8022139008 is 8009312208.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 8022139008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475941 + ... + 492507.

It is an arithmetic number, because the mean of its divisors is an integer number (181140015).

Almost surely, 2^8022139008 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 8022139008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11592960960).

8022139008 is an abundant number, since it is smaller than the sum of its proper divisors (15163782912).

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

8022139008 is a wasteful number, since it uses less digits than its factorization.

8022139008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16694 (or 16682 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8022139008 is about 89566.3944121901. The cubic root of 8022139008 is about 2001.8432180850.

The spelling of 8022139008 in words is "eight billion, twenty-two million, one hundred thirty-nine thousand, eight".