864595475690 has 8 divisors (see below), whose sum is σ = 1556271856260. Its totient is φ = 345838190272.

The previous prime is 864595475687. The next prime is 864595475707. The reversal of 864595475690 is 96574595468.

It can be written as a sum of positive squares in 2 ways, for example, as 704050211929 + 160545263761 = 839077^2 + 400681^2 .

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

It is a super-2 number, since 2×864595475690² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 864595475690.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43229773775 + ... + 43229773794.

Almost surely, 2^864595475690 is an apocalyptic number.

864595475690 is a deficient number, since it is larger than the sum of its proper divisors (691676380570).

864595475690 is a wasteful number, since it uses less digits than its factorization.

864595475690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86459547576.

The product of its (nonzero) digits is 326592000, while the sum is 68.

The spelling of 864595475690 in words is "eight hundred sixty-four billion, five hundred ninety-five million, four hundred seventy-five thousand, six hundred ninety".