8938766664 has 96 divisors (see below), whose sum is σ = 25289802720. Its totient is φ = 2957751936.

The previous prime is 8938766663. The next prime is 8938766671. The reversal of 8938766664 is 4666678398.

It is not an unprimeable number, because it can be changed into a prime (8938766663) 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, 249547 + ... + 283109.

It is an arithmetic number, because the mean of its divisors is an integer number (263435445).

Almost surely, 2^8938766664 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 8938766664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12644901360).

8938766664 is an abundant number, since it is smaller than the sum of its proper divisors (16351036056).

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

8938766664 is a wasteful number, since it uses less digits than its factorization.

8938766664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33721 (or 33705 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The square root of 8938766664 is about 94545.0509757121. The cubic root of 8938766664 is about 2075.3556588985.

The spelling of 8938766664 in words is "eight billion, nine hundred thirty-eight million, seven hundred sixty-six thousand, six hundred sixty-four".