6378695568 has 240 divisors, whose sum is σ = 21272416256. Its totient is φ = 1812585600.

The previous prime is 6378695461. The next prime is 6378695573. The reversal of 6378695568 is 8655968736.

6378695568 is a `hidden beast` number, since 6 + 3 + 7 + 8 + 69 + 5 + 568 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6068643 + ... + 6069693.

Almost surely, 2^6378695568 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 6378695568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10636208128).

6378695568 is an abundant number, since it is smaller than the sum of its proper divisors (14893720688).

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

6378695568 is a wasteful number, since it uses less digits than its factorization.

6378695568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1286 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The square root of 6378695568 is about 79866.7363049223. The cubic root of 6378695568 is about 1854.5731096537.

The spelling of 6378695568 in words is "six billion, three hundred seventy-eight million, six hundred ninety-five thousand, five hundred sixty-eight".