6380891800 has 48 divisors (see below), whose sum is σ = 14888500200. Its totient is φ = 2543251200.

The previous prime is 6380891791. The next prime is 6380891813. The reversal of 6380891800 is 81980836.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570 + ... + 112969.

Almost surely, 2^6380891800 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 6380891800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7444250100).

6380891800 is an abundant number, since it is smaller than the sum of its proper divisors (8507608400).

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

6380891800 is a wasteful number, since it uses less digits than its factorization.

6380891800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113836 (or 113827 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 6380891800 is about 79880.4844752459. The cubic root of 6380891800 is about 1854.7859329701.

The spelling of 6380891800 in words is "six billion, three hundred eighty million, eight hundred ninety-one thousand, eight hundred".