509688959607 has 12 divisors (see below), whose sum is σ = 737009881920. Its totient is φ = 339426872448.

The previous prime is 509688959519. The next prime is 509688959621. The reversal of 509688959607 is 706959886905.

509688959607 is a `hidden beast` number, since 5 + 0 + 9 + 6 + 8 + 8 + 9 + 5 + 9 + 607 = 666.

It is not a de Polignac number, because 509688959607 - 2¹⁵ = 509688926839 is a prime.

It is a super-3 number, since 3×509688959607³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509688959207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30471783 + ... + 30488504.

It is an arithmetic number, because the mean of its divisors is an integer number (61417490160).

Almost surely, 2^509688959607 is an apocalyptic number.

509688959607 is a deficient number, since it is larger than the sum of its proper divisors (227320922313).

509688959607 is a wasteful number, since it uses less digits than its factorization.

509688959607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60961222 (or 60961219 counting only the distinct ones).

The product of its (nonzero) digits is 293932800, while the sum is 72.

The spelling of 509688959607 in words is "five hundred nine billion, six hundred eighty-eight million, nine hundred fifty-nine thousand, six hundred seven".