868968289919 has 4 divisors (see below), whose sum is σ = 870556897944. Its totient is φ = 867379681896.

The previous prime is 868968289697. The next prime is 868968289933. The reversal of 868968289919 is 919982869868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 868968289919 - 2⁸ = 868968289663 is a prime.

It is a super-2 number, since 2×868968289919² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868968285919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794303192 + ... + 794304285.

It is an arithmetic number, because the mean of its divisors is an integer number (217639224486).

Almost surely, 2^868968289919 is an apocalyptic number.

868968289919 is a deficient number, since it is larger than the sum of its proper divisors (1588608025).

868968289919 is a wasteful number, since it uses less digits than its factorization.

868968289919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588608024.

The product of its digits is 1934917632, while the sum is 83.

The spelling of 868968289919 in words is "eight hundred sixty-eight billion, nine hundred sixty-eight million, two hundred eighty-nine thousand, nine hundred nineteen".