7666736848 has 20 divisors (see below), whose sum is σ = 15255771460. Its totient is φ = 3729763584.

The previous prime is 7666736843. The next prime is 7666736849. The reversal of 7666736848 is 8486376667.

It can be written as a sum of positive squares in 2 ways, for example, as 6504745104 + 1161991744 = 80652^2 + 34088^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666736843) 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 3 ways as a sum of consecutive naturals, for example, 6474693 + ... + 6475876.

It is an arithmetic number, because the mean of its divisors is an integer number (762788573).

Almost surely, 2^7666736848 is an apocalyptic number.

It is an amenable number.

7666736848 is a deficient number, since it is larger than the sum of its proper divisors (7589034612).

7666736848 is a wasteful number, since it uses less digits than its factorization.

7666736848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950614 (or 12950608 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 61.

The square root of 7666736848 is about 87559.9043398290. The cubic root of 7666736848 is about 1971.8332499745.

The spelling of 7666736848 in words is "seven billion, six hundred sixty-six million, seven hundred thirty-six thousand, eight hundred forty-eight".