5643887680 has 56 divisors (see below), whose sum is σ = 14146865280. Its totient is φ = 2138734080.

The previous prime is 5643887659. The next prime is 5643887707. The reversal of 5643887680 is 867883465.

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, 458056 + ... + 470215.

Almost surely, 2^5643887680 is an apocalyptic number.

It is an amenable number.

5643887680 is an abundant number, since it is smaller than the sum of its proper divisors (8502977600).

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

5643887680 is a wasteful number, since it uses less digits than its factorization.

5643887680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928307 (or 928297 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The square root of 5643887680 is about 75125.8123416978. The cubic root of 5643887680 is about 1780.4349902686.

The spelling of 5643887680 in words is "five billion, six hundred forty-three million, eight hundred eighty-seven thousand, six hundred eighty".