5636864268 has 72 divisors (see below), whose sum is σ = 16347825312. Its totient is φ = 1604247552.

The previous prime is 5636864257. The next prime is 5636864269. The reversal of 5636864268 is 8624686365.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5636864269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21246 + ... + 108282.

Almost surely, 2^5636864268 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 5636864268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8173912656).

5636864268 is an abundant number, since it is smaller than the sum of its proper divisors (10710961044).

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

5636864268 is a wasteful number, since it uses less digits than its factorization.

5636864268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87311 (or 87306 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The square root of 5636864268 is about 75079.0534570062. The cubic root of 5636864268 is about 1779.6961426366.

The spelling of 5636864268 in words is "five billion, six hundred thirty-six million, eight hundred sixty-four thousand, two hundred sixty-eight".