6388801320 has 128 divisors (see below), whose sum is σ = 20931488640. Its totient is φ = 1547120640.

The previous prime is 6388801303. The next prime is 6388801327. The reversal of 6388801320 is 231088836.

It is not an unprimeable number, because it can be changed into a prime (6388801327) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1572732 + ... + 1576788.

It is an arithmetic number, because the mean of its divisors is an integer number (163527255).

Almost surely, 2^6388801320 is an apocalyptic number.

6388801320 is a gapful number since it is divisible by the number (60) 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 6388801320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10465744320).

6388801320 is an abundant number, since it is smaller than the sum of its proper divisors (14542687320).

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

6388801320 is a wasteful number, since it uses less digits than its factorization.

6388801320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275 (or 5271 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 6388801320 is about 79929.9776054016. The cubic root of 6388801320 is about 1855.5519914567.

It can be divided in two parts, 638880 and 1320, that multiplied together give a square (843321600 = 29040²).

The spelling of 6388801320 in words is "six billion, three hundred eighty-eight million, eight hundred one thousand, three hundred twenty".