868671223309 has 4 divisors (see below), whose sum is σ = 871740733216. Its totient is φ = 865601713404.

The previous prime is 868671223297. The next prime is 868671223339. The reversal of 868671223309 is 903322176868.

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 868671223309 - 2²³ = 868662834701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 868671223309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868671223339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1534754529 + ... + 1534755094.

It is an arithmetic number, because the mean of its divisors is an integer number (217935183304).

Almost surely, 2^868671223309 is an apocalyptic number.

It is an amenable number.

868671223309 is a deficient number, since it is larger than the sum of its proper divisors (3069509907).

868671223309 is a wasteful number, since it uses less digits than its factorization.

868671223309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069509906.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 868671223309 in words is "eight hundred sixty-eight billion, six hundred seventy-one million, two hundred twenty-three thousand, three hundred nine".