7889628768 has 72 divisors (see below), whose sum is σ = 24091559352. Its totient is φ = 2254178304.

The previous prime is 7889628709. The next prime is 7889628779. The reversal of 7889628768 is 8678269887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 833905 + ... + 843312.

It is an arithmetic number, because the mean of its divisors is an integer number (334604991).

Almost surely, 2^7889628768 is an apocalyptic number.

It is an amenable number.

7889628768 is an abundant number, since it is smaller than the sum of its proper divisors (16201930584).

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

7889628768 is a wasteful number, since it uses less digits than its factorization.

7889628768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677244 (or 1677229 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 69.

The square root of 7889628768 is about 88823.5822740785. The cubic root of 7889628768 is about 1990.7597721738.

The spelling of 7889628768 in words is "seven billion, eight hundred eighty-nine million, six hundred twenty-eight thousand, seven hundred sixty-eight".