8419728384 has 154 divisors (see below), whose sum is σ = 25237544880. Its totient is φ = 2806327296.

The previous prime is 8419728367. The next prime is 8419728481. The reversal of 8419728384 is 4838279148.

It is a happy number.

8419728384 is a `hidden beast` number, since 8 + 419 + 72 + 83 + 84 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8419728384.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 740857 + ... + 752135.

Almost surely, 2^8419728384 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 8419728384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12618772440).

8419728384 is an abundant number, since it is smaller than the sum of its proper divisors (16817816496).

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

8419728384 is an equidigital number, since it uses as much as digits as its factorization.

8419728384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11317 (or 11284 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 8419728384 is about 91759.0779378259. The cubic root of 8419728384 is about 2034.3828866478.

The spelling of 8419728384 in words is "eight billion, four hundred nineteen million, seven hundred twenty-eight thousand, three hundred eighty-four".