856768078 has 16 divisors (see below), whose sum is σ = 1377275040. Its totient is φ = 398683296.

The previous prime is 856768063. The next prime is 856768079. The reversal of 856768078 is 870867658.

856768078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856768079) 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, 249993 + ... + 253396.

It is an arithmetic number, because the mean of its divisors is an integer number (86079690).

Almost surely, 2^856768078 is an apocalyptic number.

856768078 is a deficient number, since it is larger than the sum of its proper divisors (520506962).

856768078 is a wasteful number, since it uses less digits than its factorization.

856768078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503451.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The square root of 856768078 is about 29270.6009162778. The cubic root of 856768078 is about 949.7757838351.

The spelling of 856768078 in words is "eight hundred fifty-six million, seven hundred sixty-eight thousand, seventy-eight".