8478915784 has 64 divisors (see below), whose sum is σ = 17645221440. Its totient is φ = 3802122240.

The previous prime is 8478915773. The next prime is 8478915793. The reversal of 8478915784 is 4875198748.

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 15 ways as a sum of consecutive naturals, for example, 222087 + ... + 257449.

It is an arithmetic number, because the mean of its divisors is an integer number (275706585).

Almost surely, 2^8478915784 is an apocalyptic number.

It is an amenable number.

8478915784 is an abundant number, since it is smaller than the sum of its proper divisors (9166305656).

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

8478915784 is a wasteful number, since it uses less digits than its factorization.

8478915784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35470 (or 35466 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 61.

The square root of 8478915784 is about 92081.0283608953. The cubic root of 8478915784 is about 2039.1387322931.

The spelling of 8478915784 in words is "eight billion, four hundred seventy-eight million, nine hundred fifteen thousand, seven hundred eighty-four".