8645804636 has 12 divisors (see below), whose sum is σ = 17291609328. Its totient is φ = 3705344832.

The previous prime is 8645804623. The next prime is 8645804659. The reversal of 8645804636 is 6364085468.

It is a happy number.

8645804636 is an admirable number.

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, 154389341 + ... + 154389396.

It is an arithmetic number, because the mean of its divisors is an integer number (1440967444).

Almost surely, 2^8645804636 is an apocalyptic number.

It is an amenable number.

8645804636 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.

8645804636 is a wasteful number, since it uses less digits than its factorization.

8645804636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308778748 (or 308778746 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 50.

The square root of 8645804636 is about 92982.8190366371. The cubic root of 8645804636 is about 2052.4305603613.

The spelling of 8645804636 in words is "eight billion, six hundred forty-five million, eight hundred four thousand, six hundred thirty-six".