7685855648 has 48 divisors (see below), whose sum is σ = 15539247360. Its totient is φ = 3740755200.

The previous prime is 7685855629. The next prime is 7685855659. The reversal of 7685855648 is 8465585867.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158078 + ... + 200898.

It is an arithmetic number, because the mean of its divisors is an integer number (323734320).

Almost surely, 2^7685855648 is an apocalyptic number.

It is an amenable number.

7685855648 is an abundant number, since it is smaller than the sum of its proper divisors (7853391712).

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

7685855648 is a wasteful number, since it uses less digits than its factorization.

7685855648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42981 (or 42973 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 62.

The square root of 7685855648 is about 87669.0119027242. The cubic root of 7685855648 is about 1973.4709650576.

The spelling of 7685855648 in words is "seven billion, six hundred eighty-five million, eight hundred fifty-five thousand, six hundred forty-eight".