8989807680 has 280 divisors, whose sum is σ = 36547397568. Its totient is φ = 2054771712.

The previous prime is 8989807667. The next prime is 8989807681. The reversal of 8989807680 is 867089898.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (8989807681) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 156667 + ... + 206213.

Almost surely, 2^8989807680 is an apocalyptic number.

8989807680 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 8989807680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18273698784).

8989807680 is an abundant number, since it is smaller than the sum of its proper divisors (27557589888).

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

8989807680 is a wasteful number, since it uses less digits than its factorization.

8989807680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49583 (or 49564 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The square root of 8989807680 is about 94814.5963446557. The cubic root of 8989807680 is about 2079.2983086748.

The spelling of 8989807680 in words is "eight billion, nine hundred eighty-nine million, eight hundred seven thousand, six hundred eighty".