8474436784 has 80 divisors (see below), whose sum is σ = 18618808320. Its totient is φ = 3702516480.

The previous prime is 8474436781. The next prime is 8474436793. The reversal of 8474436784 is 4876344748.

It is not an unprimeable number, because it can be changed into a prime (8474436781) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 532657 + ... + 548335.

It is an arithmetic number, because the mean of its divisors is an integer number (232735104).

Almost surely, 2^8474436784 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 8474436784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9309404160).

8474436784 is an abundant number, since it is smaller than the sum of its proper divisors (10144371536).

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

8474436784 is a wasteful number, since it uses less digits than its factorization.

8474436784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15818 (or 15812 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 55.

The square root of 8474436784 is about 92056.7041773710. The cubic root of 8474436784 is about 2038.7796096838.

The spelling of 8474436784 in words is "eight billion, four hundred seventy-four million, four hundred thirty-six thousand, seven hundred eighty-four".