8994343680 has 792 divisors, whose sum is σ = 39105333792. Its totient is φ = 1934917632.

The previous prime is 8994343679. The next prime is 8994343723. The reversal of 8994343680 is 863434998.

It is a happy number.

8994343680 is a `hidden beast` number, since 8 + 99 + 43 + 436 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 529079032 + ... + 529079048.

Almost surely, 2^8994343680 is an apocalyptic number.

8994343680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8994343680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19552666896).

8994343680 is an abundant number, since it is smaller than the sum of its proper divisors (30110990112).

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

8994343680 is an frugal number, since it uses more digits than its factorization.

8994343680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The square root of 8994343680 is about 94838.5136956500. The cubic root of 8994343680 is about 2079.6479680367.

The spelling of 8994343680 in words is "eight billion, nine hundred ninety-four million, three hundred forty-three thousand, six hundred eighty".