7676656121 has 2 divisors, whose sum is σ = 7676656122. Its totient is φ = 7676656120.

The previous prime is 7676656087. The next prime is 7676656133. The reversal of 7676656121 is 1216566767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5455890496 + 2220765625 = 73864^2 + 47125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7676656121 is a prime.

It is not a weakly prime, because it can be changed into another prime (7676656721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3838328060 + 3838328061.

It is an arithmetic number, because the mean of its divisors is an integer number (3838328061).

Almost surely, 2^7676656121 is an apocalyptic number.

It is an amenable number.

7676656121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7676656121 is an equidigital number, since it uses as much as digits as its factorization.

7676656121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 7676656121 is about 87616.5288116346. The cubic root of 7676656121 is about 1972.6832736335.

The spelling of 7676656121 in words is "seven billion, six hundred seventy-six million, six hundred fifty-six thousand, one hundred twenty-one".