8280806868820 has 96 divisors (see below), whose sum is σ = 18143206373376. Its totient is φ = 3171140928000.

The previous prime is 8280806868811. The next prime is 8280806868821. The reversal of 8280806868820 is 288686080828.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280806868821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77407489 + ... + 77514391.

It is an arithmetic number, because the mean of its divisors is an integer number (188991733056).

Almost surely, 2^{8280806868820} 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 8280806868820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9071603186688).

8280806868820 is an abundant number, since it is smaller than the sum of its proper divisors (9862399504556).

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

8280806868820 is a wasteful number, since it uses less digits than its factorization.

8280806868820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108281 (or 108279 counting only the distinct ones).

The product of its (nonzero) digits is 37748736, while the sum is 64.

The spelling of 8280806868820 in words is "eight trillion, two hundred eighty billion, eight hundred six million, eight hundred sixty-eight thousand, eight hundred twenty".