6396837888 has 240 divisors, whose sum is σ = 20082308400. Its totient is φ = 1805647872.

The previous prime is 6396837883. The next prime is 6396837919. The reversal of 6396837888 is 8887386936.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6396837883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77070295 + ... + 77070377.

It is an arithmetic number, because the mean of its divisors is an integer number (83676285).

Almost surely, 2^6396837888 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 6396837888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10041154200).

6396837888 is an abundant number, since it is smaller than the sum of its proper divisors (13685470512).

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

6396837888 is an frugal number, since it uses more digits than its factorization.

6396837888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 95 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 66.

The square root of 6396837888 is about 79980.2343582463. The cubic root of 6396837888 is about 1856.3297075773.

The spelling of 6396837888 in words is "six billion, three hundred ninety-six million, eight hundred thirty-seven thousand, eight hundred eighty-eight".