4065728078 has 8 divisors (see below), whose sum is σ = 6363748368. Its totient is φ = 1944478624.

The previous prime is 4065728077. The next prime is 4065728083. The reversal of 4065728078 is 8708275604.

4065728078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065728077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44192651 + ... + 44192742.

It is an arithmetic number, because the mean of its divisors is an integer number (795468546).

Almost surely, 2^4065728078 is an apocalyptic number.

4065728078 is a deficient number, since it is larger than the sum of its proper divisors (2298020290).

4065728078 is a wasteful number, since it uses less digits than its factorization.

4065728078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88385418.

The product of its (nonzero) digits is 752640, while the sum is 47.

The square root of 4065728078 is about 63763.0620186954. The cubic root of 4065728078 is about 1596.0485930121.

The spelling of 4065728078 in words is "four billion, sixty-five million, seven hundred twenty-eight thousand, seventy-eight".