8612066844 has 144 divisors (see below), whose sum is σ = 23324464800. Its totient is φ = 2671460352.

The previous prime is 8612066843. The next prime is 8612066857. The reversal of 8612066844 is 4486602168.

It is a self number, because there is not a number n which added to its sum of digits gives 8612066844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8612066843) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 11748702 + ... + 11749434.

It is an arithmetic number, because the mean of its divisors is an integer number (161975450).

Almost surely, 2^8612066844 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 8612066844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11662232400).

8612066844 is an abundant number, since it is smaller than the sum of its proper divisors (14712397956).

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

8612066844 is a wasteful number, since it uses less digits than its factorization.

8612066844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 8612066844 is about 92801.2222117791. Note that the first 4 decimals coincide. The cubic root of 8612066844 is about 2049.7574048838.

The spelling of 8612066844 in words is "eight billion, six hundred twelve million, sixty-six thousand, eight hundred forty-four".