6378447200 has 72 divisors (see below), whose sum is σ = 15584190048. Its totient is φ = 2549281280.

The previous prime is 6378447199. The next prime is 6378447211. The reversal of 6378447200 is 27448736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1287929 + ... + 1292871.

It is an arithmetic number, because the mean of its divisors is an integer number (216447084).

Almost surely, 2^6378447200 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 6378447200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7792095024).

6378447200 is an abundant number, since it is smaller than the sum of its proper divisors (9205742848).

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

6378447200 is a wasteful number, since it uses less digits than its factorization.

6378447200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 6378447200 is about 79865.1813996563. The cubic root of 6378447200 is about 1854.5490387660.

The spelling of 6378447200 in words is "six billion, three hundred seventy-eight million, four hundred forty-seven thousand, two hundred".