609517472656 has 45 divisors (see below), whose sum is σ = 1198243212753. Its totient is φ = 300357059520.

The previous prime is 609517472623. The next prime is 609517472687. The reversal of 609517472656 is 656274715906.

The square root of 609517472656 is 780716.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 72638874256 + 536878598400 = 269516^2 + 732720^2 .

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 609517472656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 221721970 + ... + 221724718.

Almost surely, 2^609517472656 is an apocalyptic number.

609517472656 is the 780716-th square number.

It is an amenable number.

609517472656 is a deficient number, since it is larger than the sum of its proper divisors (588725740097).

609517472656 is an frugal number, since it uses more digits than its factorization.

609517472656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5648 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 609517472656 in words is "six hundred nine billion, five hundred seventeen million, four hundred seventy-two thousand, six hundred fifty-six".