6378081648 has 40 divisors (see below), whose sum is σ = 16484630928. Its totient is φ = 2125005312.

The previous prime is 6378081637. The next prime is 6378081673. The reversal of 6378081648 is 8461808736.

It is a self number, because there is not a number n which added to its sum of digits gives 6378081648.

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 7 ways as a sum of consecutive naturals, for example, 72486 + ... + 134202.

Almost surely, 2^6378081648 is an apocalyptic number.

It is an amenable number.

6378081648 is an abundant number, since it is smaller than the sum of its proper divisors (10106549280).

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

6378081648 is a wasteful number, since it uses less digits than its factorization.

6378081648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63881 (or 63875 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 6378081648 is about 79862.8928101155. The cubic root of 6378081648 is about 1854.5136097115.

The spelling of 6378081648 in words is "six billion, three hundred seventy-eight million, eighty-one thousand, six hundred forty-eight".