5686639168 has 56 divisors (see below), whose sum is σ = 12918147392. Its totient is φ = 2433037824.

The previous prime is 5686639159. The next prime is 5686639171. The reversal of 5686639168 is 8619366865.

It is a tau number, because it is divible by the number of its divisors (56).

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, 264271 + ... + 284977.

Almost surely, 2^5686639168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5686639168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6459073696).

5686639168 is an abundant number, since it is smaller than the sum of its proper divisors (7231508224).

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

5686639168 is a wasteful number, since it uses less digits than its factorization.

5686639168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21339 (or 21329 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 58.

The square root of 5686639168 is about 75409.8081684339. The cubic root of 5686639168 is about 1784.9191841993.

The spelling of 5686639168 in words is "five billion, six hundred eighty-six million, six hundred thirty-nine thousand, one hundred sixty-eight".