868663668717 has 32 divisors (see below), whose sum is σ = 1385958994560. Its totient is φ = 534540332160.

The previous prime is 868663668583. The next prime is 868663668727. The reversal of 868663668717 is 717866366868.

It is not a de Polignac number, because 868663668717 - 2¹⁹ = 868663144429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868663668727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14254242 + ... + 14315052.

It is an arithmetic number, because the mean of its divisors is an integer number (43311218580).

Almost surely, 2^868663668717 is an apocalyptic number.

It is an amenable number.

868663668717 is a deficient number, since it is larger than the sum of its proper divisors (517295325843).

868663668717 is a wasteful number, since it uses less digits than its factorization.

868663668717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101530 (or 101524 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 72.

The spelling of 868663668717 in words is "eight hundred sixty-eight billion, six hundred sixty-three million, six hundred sixty-eight thousand, seven hundred seventeen".