7720444680 has 64 divisors (see below), whose sum is σ = 24942980160. Its totient is φ = 1900416768.

The previous prime is 7720444649. The next prime is 7720444717. The reversal of 7720444680 is 864440277.

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, 2472942 + ... + 2476061.

It is an arithmetic number, because the mean of its divisors is an integer number (389734065).

Almost surely, 2^7720444680 is an apocalyptic number.

It is an amenable number.

7720444680 is an abundant number, since it is smaller than the sum of its proper divisors (17222535480).

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

7720444680 is a wasteful number, since it uses less digits than its factorization.

7720444680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949030 (or 4949026 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The square root of 7720444680 is about 87866.0610247210. The cubic root of 7720444680 is about 1976.4269710909.

The spelling of 7720444680 in words is "seven billion, seven hundred twenty million, four hundred forty-four thousand, six hundred eighty".