6688850069 has 8 divisors (see below), whose sum is σ = 7304258208. Its totient is φ = 6074663760.

The previous prime is 6688850057. The next prime is 6688850083. The reversal of 6688850069 is 9600588866.

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

It is a de Polignac number, because none of the positive numbers 2^k-6688850069 is a prime.

It is a super-2 number, since 2×6688850069² = 89481430491122609522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6688849996 and 6688850023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688850089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293987 + ... + 315920.

It is an arithmetic number, because the mean of its divisors is an integer number (913032276).

Almost surely, 2^6688850069 is an apocalyptic number.

It is an amenable number.

6688850069 is a deficient number, since it is larger than the sum of its proper divisors (615408139).

6688850069 is a wasteful number, since it uses less digits than its factorization.

6688850069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610915.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The square root of 6688850069 is about 81785.3903151412. The cubic root of 6688850069 is about 1884.1572846820.

The spelling of 6688850069 in words is "six billion, six hundred eighty-eight million, eight hundred fifty thousand, sixty-nine".