609797912187 has 8 divisors (see below), whose sum is σ = 818998656336. Its totient is φ = 403564554752.

The previous prime is 609797912173. The next prime is 609797912203. The reversal of 609797912187 is 781219797906.

It is a happy number.

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 609797912187 - 2¹⁸ = 609797650043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (609797912287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741846198 + ... + 741847019.

It is an arithmetic number, because the mean of its divisors is an integer number (102374832042).

Almost surely, 2^609797912187 is an apocalyptic number.

609797912187 is a deficient number, since it is larger than the sum of its proper divisors (209200744149).

609797912187 is a wasteful number, since it uses less digits than its factorization.

609797912187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483693357.

The product of its (nonzero) digits is 24004512, while the sum is 66.

The spelling of 609797912187 in words is "six hundred nine billion, seven hundred ninety-seven million, nine hundred twelve thousand, one hundred eighty-seven".