7720328752 has 10 divisors (see below), whose sum is σ = 14958136988. Its totient is φ = 3860164368.

The previous prime is 7720328723. The next prime is 7720328797. The reversal of 7720328752 is 2578230277.

It is a junction number, because it is equal to n+sod(n) for n = 7720328699 and 7720328708.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241260258 + ... + 241260289.

Almost surely, 2^7720328752 is an apocalyptic number.

It is an amenable number.

7720328752 is a deficient number, since it is larger than the sum of its proper divisors (7237808236).

7720328752 is a wasteful number, since it uses less digits than its factorization.

7720328752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482520555 (or 482520549 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 7720328752 is about 87865.4013363622. The cubic root of 7720328752 is about 1976.4170785530.

The spelling of 7720328752 in words is "seven billion, seven hundred twenty million, three hundred twenty-eight thousand, seven hundred fifty-two".