4478216544 has 120 divisors (see below), whose sum is σ = 13267496088. Its totient is φ = 1481725440.

The previous prime is 4478216539. The next prime is 4478216573. The reversal of 4478216544 is 4456128744.

4478216544 is a `hidden beast` number, since 447 + 8 + 2 + 165 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 4478216544.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 348799 + ... + 361409.

Almost surely, 2^4478216544 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 4478216544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6633748044).

4478216544 is an abundant number, since it is smaller than the sum of its proper divisors (8789279544).

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

4478216544 is a wasteful number, since it uses less digits than its factorization.

4478216544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12770 (or 12753 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 4478216544 is about 66919.4780613238. The cubic root of 4478216544 is about 1648.2953369902.

The spelling of 4478216544 in words is "four billion, four hundred seventy-eight million, two hundred sixteen thousand, five hundred forty-four".