7997668033 has 2 divisors, whose sum is σ = 7997668034. Its totient is φ = 7997668032.

The previous prime is 7997667989. The next prime is 7997668069. The reversal of 7997668033 is 3308667997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5412250624 + 2585417409 = 73568^2 + 50847^2 .

It is a cyclic number.

It is not a de Polignac number, because 7997668033 - 2⁹ = 7997667521 is a prime.

It is not a weakly prime, because it can be changed into another prime (7997668933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3998834016 + 3998834017.

It is an arithmetic number, because the mean of its divisors is an integer number (3998834017).

Almost surely, 2^7997668033 is an apocalyptic number.

It is an amenable number.

7997668033 is a deficient number, since it is larger than the sum of its proper divisors (1).

7997668033 is an equidigital number, since it uses as much as digits as its factorization.

7997668033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The square root of 7997668033 is about 89429.6820580281. The cubic root of 7997668033 is about 1999.8056505314.

The spelling of 7997668033 in words is "seven billion, nine hundred ninety-seven million, six hundred sixty-eight thousand, thirty-three".