7989534768 has 40 divisors (see below), whose sum is σ = 21305430016. Its totient is φ = 2577268800.

The previous prime is 7989534757. The next prime is 7989534769. The reversal of 7989534768 is 8674359897.

It is a junction number, because it is equal to n+sod(n) for n = 7989534699 and 7989534708.

It is not an unprimeable number, because it can be changed into a prime (7989534769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2683168 + ... + 2686143.

Almost surely, 2^7989534768 is an apocalyptic number.

It is an amenable number.

7989534768 is an abundant number, since it is smaller than the sum of its proper divisors (13315895248).

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

7989534768 is a wasteful number, since it uses less digits than its factorization.

7989534768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5369353 (or 5369347 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 66.

The square root of 7989534768 is about 89384.1975295410. The cubic root of 7989534768 is about 1999.1275167752.

The spelling of 7989534768 in words is "seven billion, nine hundred eighty-nine million, five hundred thirty-four thousand, seven hundred sixty-eight".