6378011856 has 120 divisors (see below), whose sum is σ = 18927717120. Its totient is φ = 1997964288.

The previous prime is 6378011797. The next prime is 6378011867. The reversal of 6378011856 is 6581108736.

6378011856 is a `hidden beast` number, since 637 + 8 + 0 + 1 + 1 + 8 + 5 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2111115 + ... + 2114133.

It is an arithmetic number, because the mean of its divisors is an integer number (157730976).

Almost surely, 2^6378011856 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 6378011856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9463858560).

6378011856 is an abundant number, since it is smaller than the sum of its proper divisors (12549705264).

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

6378011856 is a wasteful number, since it uses less digits than its factorization.

6378011856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913 (or 3904 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 6378011856 is about 79862.4558600598. The cubic root of 6378011856 is about 1854.5068453638.

The spelling of 6378011856 in words is "six billion, three hundred seventy-eight million, eleven thousand, eight hundred fifty-six".