6384649216 has 99 divisors (see below), whose sum is σ = 14090895007. Its totient is φ = 2889328640.

The previous prime is 6384649199. The next prime is 6384649259. The reversal of 6384649216 is 6129464836.

The square root of 6384649216 is 79904.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×6384649216² = 81527491222738829312, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6384649216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 28126095 + ... + 28126321.

Almost surely, 2^6384649216 is an apocalyptic number.

6384649216 is the 79904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6384649216

6384649216 is an abundant number, since it is smaller than the sum of its proper divisors (7706245791).

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

6384649216 is an equidigital number, since it uses as much as digits as its factorization.

6384649216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 240 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The cubic root of 6384649216 is about 1855.1499277981.

Multiplying 6384649216 by its sum of digits (49), we get a square (312847811584 = 559328²).

The spelling of 6384649216 in words is "six billion, three hundred eighty-four million, six hundred forty-nine thousand, two hundred sixteen".