8489494656 has 192 divisors, whose sum is σ = 25484659200. Its totient is φ = 2813045760.

The previous prime is 8489494627. The next prime is 8489494691. The reversal of 8489494656 is 6564949848.

8489494656 is a `hidden beast` number, since 8 + 4 + 89 + 494 + 65 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 8489494593 and 8489494602.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5940150 + ... + 5941578.

It is an arithmetic number, because the mean of its divisors is an integer number (132732600).

Almost surely, 2^8489494656 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 8489494656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12742329600).

8489494656 is an abundant number, since it is smaller than the sum of its proper divisors (16995164544).

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

8489494656 is a wasteful number, since it uses less digits than its factorization.

8489494656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1625 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

The square root of 8489494656 is about 92138.4537313276. The cubic root of 8489494656 is about 2039.9864358960.

The spelling of 8489494656 in words is "eight billion, four hundred eighty-nine million, four hundred ninety-four thousand, six hundred fifty-six".