609495509269 has 2 divisors, whose sum is σ = 609495509270. Its totient is φ = 609495509268.

The previous prime is 609495509263. The next prime is 609495509317. The reversal of 609495509269 is 962905594906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 521627728644 + 87867780625 = 722238^2 + 296425^2 .

It is a cyclic number.

It is not a de Polignac number, because 609495509269 - 2⁹ = 609495508757 is a prime.

It is a super-2 number, since 2×609495509269² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 609495509269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609495509263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304747754634 + 304747754635.

It is an arithmetic number, because the mean of its divisors is an integer number (304747754635).

Almost surely, 2^609495509269 is an apocalyptic number.

It is an amenable number.

609495509269 is a deficient number, since it is larger than the sum of its proper divisors (1).

609495509269 is an equidigital number, since it uses as much as digits as its factorization.

609495509269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47239200, while the sum is 64.

The spelling of 609495509269 in words is "six hundred nine billion, four hundred ninety-five million, five hundred nine thousand, two hundred sixty-nine".