8945982720 has 108 divisors (see below), whose sum is σ = 30952208196. Its totient is φ = 2385592320.

The previous prime is 8945982701. The next prime is 8945982761. The reversal of 8945982720 is 272895498.

8945982720 is a `hidden beast` number, since 8 + 9 + 4 + 598 + 27 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6991635456 + 1954347264 = 83616^2 + 44208^2 .

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 11 ways as a sum of consecutive naturals, for example, 376761 + ... + 399800.

Almost surely, 2^8945982720 is an apocalyptic number.

8945982720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8945982720 is an abundant number, since it is smaller than the sum of its proper divisors (22006225476).

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

8945982720 is a wasteful number, since it uses less digits than its factorization.

8945982720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776588 (or 776571 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 8945982720 is about 94583.2052745095. The cubic root of 8945982720 is about 2075.9139706183.

The spelling of 8945982720 in words is "eight billion, nine hundred forty-five million, nine hundred eighty-two thousand, seven hundred twenty".