4068768256 has 80 divisors (see below), whose sum is σ = 9313064640. Its totient is φ = 1739612160.

The previous prime is 4068768251. The next prime is 4068768313. The reversal of 4068768256 is 6528678604.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4068768251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866175 + ... + 1868353.

It is an arithmetic number, because the mean of its divisors is an integer number (116413308).

Almost surely, 2^4068768256 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 4068768256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4656532320).

4068768256 is an abundant number, since it is smaller than the sum of its proper divisors (5244296384).

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

4068768256 is an equidigital number, since it uses as much as digits as its factorization.

4068768256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The square root of 4068768256 is about 63786.8972125154. The cubic root of 4068768256 is about 1596.4463129111.

The spelling of 4068768256 in words is "four billion, sixty-eight million, seven hundred sixty-eight thousand, two hundred fifty-six".