7847065768 has 32 divisors (see below), whose sum is σ = 15958713960. Its totient is φ = 3602667520.

The previous prime is 7847065757. The next prime is 7847065769. The reversal of 7847065768 is 8675607487.

It can be written as a sum of positive squares in 4 ways, for example, as 6888668004 + 958397764 = 82998^2 + 30958^2 .

It is not an unprimeable number, because it can be changed into a prime (7847065769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698071 + ... + 709222.

Almost surely, 2^7847065768 is an apocalyptic number.

It is an amenable number.

7847065768 is an abundant number, since it is smaller than the sum of its proper divisors (8111648192).

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

7847065768 is a wasteful number, since it uses less digits than its factorization.

7847065768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407357 (or 1407353 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 58.

The square root of 7847065768 is about 88583.6653565430. The cubic root of 7847065768 is about 1987.1733956315.

The spelling of 7847065768 in words is "seven billion, eight hundred forty-seven million, sixty-five thousand, seven hundred sixty-eight".