6689635086 has 8 divisors (see below), whose sum is σ = 13379270184. Its totient is φ = 2229878360.

The previous prime is 6689635063. The next prime is 6689635093. The reversal of 6689635086 is 6805369866.

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

6689635086 is an admirable number.

It is a super-3 number, since 3×6689635086³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557469585 + ... + 557469596.

It is an arithmetic number, because the mean of its divisors is an integer number (1672408773).

Almost surely, 2^6689635086 is an apocalyptic number.

6689635086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6689635086 is a wasteful number, since it uses less digits than its factorization.

6689635086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114939186.

The product of its (nonzero) digits is 11197440, while the sum is 57.

The square root of 6689635086 is about 81790.1894239156. The cubic root of 6689635086 is about 1884.2309913044.

The spelling of 6689635086 in words is "six billion, six hundred eighty-nine million, six hundred thirty-five thousand, eighty-six".