6384855520 has 48 divisors (see below), whose sum is σ = 15127823088. Its totient is φ = 2546560000.

The previous prime is 6384855509. The next prime is 6384855523. The reversal of 6384855520 is 255584836.

It is a super-2 number, since 2×6384855520² = 81532760022548940800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6384855523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 113020.

It is an arithmetic number, because the mean of its divisors is an integer number (315162981).

Almost surely, 2^6384855520 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 6384855520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7563911544).

6384855520 is an abundant number, since it is smaller than the sum of its proper divisors (8742967568).

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

6384855520 is a wasteful number, since it uses less digits than its factorization.

6384855520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115363 (or 115355 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 46.

The square root of 6384855520 is about 79905.2909387107. The cubic root of 6384855520 is about 1855.1699090957.

The spelling of 6384855520 in words is "six billion, three hundred eighty-four million, eight hundred fifty-five thousand, five hundred twenty".