7720316870 has 96 divisors (see below), whose sum is σ = 16378951680. Its totient is φ = 2566175040.

The previous prime is 7720316861. The next prime is 7720316917. The reversal of 7720316870 is 786130277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24824015 + ... + 24824325.

It is an arithmetic number, because the mean of its divisors is an integer number (170614080).

Almost surely, 2^7720316870 is an apocalyptic number.

7720316870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7720316870 is an abundant number, since it is smaller than the sum of its proper divisors (8658634810).

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

7720316870 is a wasteful number, since it uses less digits than its factorization.

7720316870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 7720316870 is about 87865.3337215537. Note that the first 3 decimals coincide. The cubic root of 7720316870 is about 1976.4160646152.

The spelling of 7720316870 in words is "seven billion, seven hundred twenty million, three hundred sixteen thousand, eight hundred seventy".