8120842752 has 160 divisors (see below), whose sum is σ = 23672056320. Its totient is φ = 2453483520.

The previous prime is 8120842747. The next prime is 8120842753. The reversal of 8120842752 is 2572480218.

It is a self number, because there is not a number n which added to its sum of digits gives 8120842752.

It is not an unprimeable number, because it can be changed into a prime (8120842753) by changing a digit.

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, 8836149 + ... + 8837067.

It is an arithmetic number, because the mean of its divisors is an integer number (147950352).

Almost surely, 2^8120842752 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 8120842752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11836028160).

8120842752 is an abundant number, since it is smaller than the sum of its proper divisors (15551213568).

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

8120842752 is a wasteful number, since it uses less digits than its factorization.

8120842752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 8120842752 is about 90115.7186732703. The cubic root of 8120842752 is about 2010.0199458430.

The spelling of 8120842752 in words is "eight billion, one hundred twenty million, eight hundred forty-two thousand, seven hundred fifty-two".