868189303617 has 4 divisors (see below), whose sum is σ = 1157585738160. Its totient is φ = 578792869076.

The previous prime is 868189303609. The next prime is 868189303633. The reversal of 868189303617 is 716303981868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 868189303617 - 2³ = 868189303609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868189303417) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 144698217267 + ... + 144698217272.

It is an arithmetic number, because the mean of its divisors is an integer number (289396434540).

Almost surely, 2^868189303617 is an apocalyptic number.

It is an amenable number.

868189303617 is a deficient number, since it is larger than the sum of its proper divisors (289396434543).

868189303617 is a wasteful number, since it uses less digits than its factorization.

868189303617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289396434542.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 868189303617 in words is "eight hundred sixty-eight billion, one hundred eighty-nine million, three hundred three thousand, six hundred seventeen".