6388329984 has 160 divisors (see below), whose sum is σ = 17540439840. Its totient is φ = 2065170432.

The previous prime is 6388329977. The next prime is 6388330001. The reversal of 6388329984 is 4899238836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7896172 + ... + 7896980.

It is an arithmetic number, because the mean of its divisors is an integer number (109627749).

Almost surely, 2^6388329984 is an apocalyptic number.

6388329984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6388329984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8770219920).

6388329984 is an abundant number, since it is smaller than the sum of its proper divisors (11152109856).

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

6388329984 is an equidigital number, since it uses as much as digits as its factorization.

6388329984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980 (or 964 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 60.

The square root of 6388329984 is about 79927.0291203170. The cubic root of 6388329984 is about 1855.5063590071.

The spelling of 6388329984 in words is "six billion, three hundred eighty-eight million, three hundred twenty-nine thousand, nine hundred eighty-four".