7680708864 has 54 divisors (see below), whose sum is σ = 22145383806. Its totient is φ = 2560235520.

The previous prime is 7680708857. The next prime is 7680708947. The reversal of 7680708864 is 4688070867.

It can be written as a sum of positive squares in only one way, i.e., 5358240000 + 2322468864 = 73200^2 + 48192^2 .

It is a super-3 number, since 3×7680708864³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7680708864.

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 5 ways as a sum of consecutive naturals, for example, 1664517 + ... + 1669124.

Almost surely, 2^7680708864 is an apocalyptic number.

It is an amenable number.

7680708864 is an abundant number, since it is smaller than the sum of its proper divisors (14464674942).

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

7680708864 is a wasteful number, since it uses less digits than its factorization.

7680708864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333663 (or 3333646 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The square root of 7680708864 is about 87639.6534908714. The cubic root of 7680708864 is about 1973.0303592967.

The spelling of 7680708864 in words is "seven billion, six hundred eighty million, seven hundred eight thousand, eight hundred sixty-four".