7868512768 has 20 divisors (see below), whose sum is σ = 15721658370. Its totient is φ = 3934256128.

The previous prime is 7868512739. The next prime is 7868512777. The reversal of 7868512768 is 8672158687.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4500799744 + 3367713024 = 67088^2 + 58032^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7683583 + ... + 7684606.

Almost surely, 2^7868512768 is an apocalyptic number.

It is an amenable number.

7868512768 is a deficient number, since it is larger than the sum of its proper divisors (7853145602).

7868512768 is an equidigital number, since it uses as much as digits as its factorization.

7868512768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368207 (or 15368191 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 58.

The square root of 7868512768 is about 88704.6378043448. The cubic root of 7868512768 is about 1988.9821455661.

The spelling of 7868512768 in words is "seven billion, eight hundred sixty-eight million, five hundred twelve thousand, seven hundred sixty-eight".