7009648909 has 2 divisors, whose sum is σ = 7009648910. Its totient is φ = 7009648908.

The previous prime is 7009648901. The next prime is 7009648951. The reversal of 7009648909 is 9098469007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7009373284 + 275625 = 83722^2 + 525^2 .

It is a cyclic number.

It is not a de Polignac number, because 7009648909 - 2³ = 7009648901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7009648901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3504824454 + 3504824455.

It is an arithmetic number, because the mean of its divisors is an integer number (3504824455).

Almost surely, 2^7009648909 is an apocalyptic number.

It is an amenable number.

7009648909 is a deficient number, since it is larger than the sum of its proper divisors (1).

7009648909 is an equidigital number, since it uses as much as digits as its factorization.

7009648909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 7009648909 is about 83723.6460565353. The cubic root of 7009648909 is about 1913.8097172772.

The spelling of 7009648909 in words is "seven billion, nine million, six hundred forty-eight thousand, nine hundred nine".