6687359789 has 8 divisors (see below), whose sum is σ = 7414897440. Its totient is φ = 5979754800.

The previous prime is 6687359689. The next prime is 6687359803. The reversal of 6687359789 is 9879537866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6687359789 - 2⁸ = 6687359533 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 (6687359689) 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, 4982459 + ... + 4983800.

It is an arithmetic number, because the mean of its divisors is an integer number (926862180).

Almost surely, 2^6687359789 is an apocalyptic number.

It is an amenable number.

6687359789 is a deficient number, since it is larger than the sum of its proper divisors (727537651).

6687359789 is a wasteful number, since it uses less digits than its factorization.

6687359789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9966331.

The product of its digits is 137168640, while the sum is 68.

The square root of 6687359789 is about 81776.2788894188. The cubic root of 6687359789 is about 1884.0173438127.

The spelling of 6687359789 in words is "six billion, six hundred eighty-seven million, three hundred fifty-nine thousand, seven hundred eighty-nine".