7720216767 has 12 divisors (see below), whose sum is σ = 11152206520. Its totient is φ = 5146450128.

The previous prime is 7720216727. The next prime is 7720216787. The reversal of 7720216767 is 7676120277.

7720216767 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7720216767 - 2³⁰ = 6646474943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720216727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190284 + ... + 227262.

Almost surely, 2^7720216767 is an apocalyptic number.

7720216767 is a deficient number, since it is larger than the sum of its proper divisors (3431989753).

7720216767 is a wasteful number, since it uses less digits than its factorization.

7720216767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60182 (or 60179 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The square root of 7720216767 is about 87864.7640809443. The cubic root of 7720216767 is about 1976.4075223911.

The spelling of 7720216767 in words is "seven billion, seven hundred twenty million, two hundred sixteen thousand, seven hundred sixty-seven".