7070666689 has 2 divisors, whose sum is σ = 7070666690. Its totient is φ = 7070666688.

The previous prime is 7070666599. The next prime is 7070666719. The reversal of 7070666689 is 9866660707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5356044225 + 1714622464 = 73185^2 + 41408^2 .

It is a cyclic number.

It is not a de Polignac number, because 7070666689 - 2²³ = 7062278081 is a prime.

It is not a weakly prime, because it can be changed into another prime (7070666189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3535333344 + 3535333345.

It is an arithmetic number, because the mean of its divisors is an integer number (3535333345).

Almost surely, 2^7070666689 is an apocalyptic number.

It is an amenable number.

7070666689 is a deficient number, since it is larger than the sum of its proper divisors (1).

7070666689 is an equidigital number, since it uses as much as digits as its factorization.

7070666689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 7070666689 is about 84087.2564007175. The cubic root of 7070666689 is about 1919.3468091478.

The spelling of 7070666689 in words is "seven billion, seventy million, six hundred sixty-six thousand, six hundred eighty-nine".