5688644687 has 4 divisors (see below), whose sum is σ = 6205794216. Its totient is φ = 5171495160.

The previous prime is 5688644657. The next prime is 5688644711. The reversal of 5688644687 is 7864468865.

5688644687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5688644687 - 2²² = 5684450383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5688644657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258574748 + ... + 258574769.

It is an arithmetic number, because the mean of its divisors is an integer number (1551448554).

Almost surely, 2^5688644687 is an apocalyptic number.

5688644687 is a deficient number, since it is larger than the sum of its proper divisors (517149529).

5688644687 is a wasteful number, since it uses less digits than its factorization.

5688644687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517149528.

The product of its digits is 61931520, while the sum is 62.

The square root of 5688644687 is about 75423.1044640832. The cubic root of 5688644687 is about 1785.1289899384.

The spelling of 5688644687 in words is "five billion, six hundred eighty-eight million, six hundred forty-four thousand, six hundred eighty-seven".