609639218085 has 8 divisors (see below), whose sum is σ = 975422748960. Its totient is φ = 325140916304.

The previous prime is 609639218039. The next prime is 609639218093. The reversal of 609639218085 is 580812936906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609639218085 - 2⁶ = 609639218021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20321307255 + ... + 20321307284.

It is an arithmetic number, because the mean of its divisors is an integer number (121927843620).

Almost surely, 2^609639218085 is an apocalyptic number.

It is an amenable number.

609639218085 is a deficient number, since it is larger than the sum of its proper divisors (365783530875).

609639218085 is a wasteful number, since it uses less digits than its factorization.

609639218085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40642614547.

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 609639218085 in words is "six hundred nine billion, six hundred thirty-nine million, two hundred eighteen thousand, eighty-five".