7720308752 has 80 divisors (see below), whose sum is σ = 16521859200. Its totient is φ = 3472229376.

The previous prime is 7720308749. The next prime is 7720308793. The reversal of 7720308752 is 2578030277.

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, 5517749 + ... + 5519147.

It is an arithmetic number, because the mean of its divisors is an integer number (206523240).

Almost surely, 2^7720308752 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 7720308752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8260929600).

7720308752 is an abundant number, since it is smaller than the sum of its proper divisors (8801550448).

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

7720308752 is a wasteful number, since it uses less digits than its factorization.

7720308752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 7720308752 is about 87865.2875258483. The cubic root of 7720308752 is about 1976.4153718738.

The spelling of 7720308752 in words is "seven billion, seven hundred twenty million, three hundred eight thousand, seven hundred fifty-two".