8947744464 has 80 divisors (see below), whose sum is σ = 24173702784. Its totient is φ = 2846553600.

The previous prime is 8947744439. The next prime is 8947744493. The reversal of 8947744464 is 4644477498.

8947744464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500154 + ... + 517734.

Almost surely, 2^8947744464 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 8947744464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12086851392).

8947744464 is an abundant number, since it is smaller than the sum of its proper divisors (15225958320).

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

8947744464 is a wasteful number, since it uses less digits than its factorization.

8947744464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18076 (or 18070 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 57.

The square root of 8947744464 is about 94592.5180127900. The cubic root of 8947744464 is about 2076.0502324858.

The spelling of 8947744464 in words is "eight billion, nine hundred forty-seven million, seven hundred forty-four thousand, four hundred sixty-four".