7851047056 has 40 divisors (see below), whose sum is σ = 15893982720. Its totient is φ = 3749830656.

The previous prime is 7851047041. The next prime is 7851047063. The reversal of 7851047056 is 6507401587.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269121 + ... + 296863.

It is an arithmetic number, because the mean of its divisors is an integer number (397349568).

Almost surely, 2^7851047056 is an apocalyptic number.

It is an amenable number.

7851047056 is an abundant number, since it is smaller than the sum of its proper divisors (8042935664).

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

7851047056 is a wasteful number, since it uses less digits than its factorization.

7851047056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28543 (or 28537 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 7851047056 is about 88606.1344151747. The cubic root of 7851047056 is about 1987.5094096360.

The spelling of 7851047056 in words is "seven billion, eight hundred fifty-one million, forty-seven thousand, fifty-six".