609370706909 has 2 divisors, whose sum is σ = 609370706910. Its totient is φ = 609370706908.

The previous prime is 609370706863. The next prime is 609370706999. The reversal of 609370706909 is 909607073906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609370706884 + 25 = 780622^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 609370706909 - 2⁸ = 609370706653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609370706999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304685353454 + 304685353455.

It is an arithmetic number, because the mean of its divisors is an integer number (304685353455).

Almost surely, 2^609370706909 is an apocalyptic number.

It is an amenable number.

609370706909 is a deficient number, since it is larger than the sum of its proper divisors (1).

609370706909 is an equidigital number, since it uses as much as digits as its factorization.

609370706909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3857868, while the sum is 56.

The spelling of 609370706909 in words is "six hundred nine billion, three hundred seventy million, seven hundred six thousand, nine hundred nine".