8636868366 has 64 divisors (see below), whose sum is σ = 20554684416. Its totient is φ = 2367993600.

The previous prime is 8636868353. The next prime is 8636868371. The reversal of 8636868366 is 6638686368.

It is a super-2 number, since 2×8636868366² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63931 + ... + 146153.

It is an arithmetic number, because the mean of its divisors is an integer number (321166944).

Almost surely, 2^8636868366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8636868366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10277342208).

8636868366 is an abundant number, since it is smaller than the sum of its proper divisors (11917816050).

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

8636868366 is a wasteful number, since it uses less digits than its factorization.

8636868366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82337.

The product of its digits is 35831808, while the sum is 60.

The square root of 8636868366 is about 92934.7532734660. The cubic root of 8636868366 is about 2051.7231885151.

The spelling of 8636868366 in words is "eight billion, six hundred thirty-six million, eight hundred sixty-eight thousand, three hundred sixty-six".