609495509313 has 6 divisors (see below), whose sum is σ = 880382402354. Its totient is φ = 406330339536.

The previous prime is 609495509269. The next prime is 609495509317. The reversal of 609495509313 is 313905594906.

609495509313 is a `hidden beast` number, since 6 + 0 + 9 + 495 + 50 + 93 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 365822957889 + 243672551424 = 604833^2 + 493632^2 .

It is not a de Polignac number, because 609495509313 - 2⁹ = 609495508801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 609495509313.

It is not an unprimeable number, because it can be changed into a prime (609495509317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33860861620 + ... + 33860861637.

Almost surely, 2^609495509313 is an apocalyptic number.

It is an amenable number.

609495509313 is a deficient number, since it is larger than the sum of its proper divisors (270886893041).

609495509313 is a wasteful number, since it uses less digits than its factorization.

609495509313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67721723263 (or 67721723260 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 54.

The spelling of 609495509313 in words is "six hundred nine billion, four hundred ninety-five million, five hundred nine thousand, three hundred thirteen".