8944636768 has 24 divisors (see below), whose sum is σ = 18645622632. Its totient is φ = 4209240576.

The previous prime is 8944636763. The next prime is 8944636781. The reversal of 8944636768 is 8676364498.

It is a super-2 number, since 2×8944636768² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8944636763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8220630 + ... + 8221717.

It is an arithmetic number, because the mean of its divisors is an integer number (776900943).

Almost surely, 2^8944636768 is an apocalyptic number.

It is an amenable number.

8944636768 is an abundant number, since it is smaller than the sum of its proper divisors (9700985864).

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

8944636768 is a wasteful number, since it uses less digits than its factorization.

8944636768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16442374 (or 16442366 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 61.

The square root of 8944636768 is about 94576.0898324730. The cubic root of 8944636768 is about 2075.8098560757.

The spelling of 8944636768 in words is "eight billion, nine hundred forty-four million, six hundred thirty-six thousand, seven hundred sixty-eight".