8789138280 has 320 divisors, whose sum is σ = 32272732800. Its totient is φ = 2132282880.

The previous prime is 8789138279. The next prime is 8789138291. The reversal of 8789138280 is 828319878.

It is a super-2 number, since 2×8789138280² (a number of 21 digits) contains 22 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2989051 + ... + 2991989.

It is an arithmetic number, because the mean of its divisors is an integer number (100852290).

Almost surely, 2^8789138280 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 8789138280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16136366400).

8789138280 is an abundant number, since it is smaller than the sum of its proper divisors (23483594520).

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

8789138280 is a wasteful number, since it uses less digits than its factorization.

8789138280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 8789138280 is about 93750.4041591288. The cubic root of 8789138280 is about 2063.7104616839.

The spelling of 8789138280 in words is "eight billion, seven hundred eighty-nine million, one hundred thirty-eight thousand, two hundred eighty".