818164993317 has 8 divisors (see below), whose sum is σ = 1246727608896. Its totient is φ = 467522853312.

The previous prime is 818164993307. The next prime is 818164993339. The reversal of 818164993317 is 713399461818.

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

It is a de Polignac number, because none of the positive numbers 2^k-818164993317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818164993307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19480118868 + ... + 19480118909.

It is an arithmetic number, because the mean of its divisors is an integer number (155840951112).

Almost surely, 2^818164993317 is an apocalyptic number.

It is an amenable number.

818164993317 is a deficient number, since it is larger than the sum of its proper divisors (428562615579).

818164993317 is a wasteful number, since it uses less digits than its factorization.

818164993317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38960237787.

The product of its digits is 7838208, while the sum is 60.

The spelling of 818164993317 in words is "eight hundred eighteen billion, one hundred sixty-four million, nine hundred ninety-three thousand, three hundred seventeen".