7664083121 has 2 divisors, whose sum is σ = 7664083122. Its totient is φ = 7664083120.

The previous prime is 7664083109. The next prime is 7664083151. The reversal of 7664083121 is 1213804667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6673092721 + 990990400 = 81689^2 + 31480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7664083121 is a prime.

It is not a weakly prime, because it can be changed into another prime (7664083151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832041560 + 3832041561.

It is an arithmetic number, because the mean of its divisors is an integer number (3832041561).

Almost surely, 2^7664083121 is an apocalyptic number.

It is an amenable number.

7664083121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7664083121 is an equidigital number, since it uses as much as digits as its factorization.

7664083121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 7664083121 is about 87544.7492485986. The cubic root of 7664083121 is about 1971.6057167969.

Adding to 7664083121 its reverse (1213804667), we get a palindrome (8877887788).

The spelling of 7664083121 in words is "seven billion, six hundred sixty-four million, eighty-three thousand, one hundred twenty-one".