6369398784 has 156 divisors (see below), whose sum is σ = 21027410976. Its totient is φ = 1819754496.

The previous prime is 6369398773. The next prime is 6369398797. The reversal of 6369398784 is 4878939636.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245707 + ... + 270389.

It is an arithmetic number, because the mean of its divisors is an integer number (134791096).

Almost surely, 2^6369398784 is an apocalyptic number.

6369398784 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 6369398784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10513705488).

6369398784 is an abundant number, since it is smaller than the sum of its proper divisors (14658012192).

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

6369398784 is a wasteful number, since it uses less digits than its factorization.

6369398784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24720 (or 24695 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The square root of 6369398784 is about 79808.5132301060. The cubic root of 6369398784 is about 1853.6716741069.

The spelling of 6369398784 in words is "six billion, three hundred sixty-nine million, three hundred ninety-eight thousand, seven hundred eighty-four".