813368863317 has 16 divisors (see below), whose sum is σ = 1141711623360. Its totient is φ = 513643070592.

The previous prime is 813368863313. The next prime is 813368863387. The reversal of 813368863317 is 713368863318.

It is not a de Polignac number, because 813368863317 - 2² = 813368863313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813368863313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416328 + ... + 1341665.

It is an arithmetic number, because the mean of its divisors is an integer number (71356976460).

Almost surely, 2^813368863317 is an apocalyptic number.

It is an amenable number.

813368863317 is a deficient number, since it is larger than the sum of its proper divisors (328342760043).

813368863317 is a wasteful number, since it uses less digits than its factorization.

813368863317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766132.

The product of its digits is 10450944, while the sum is 57.

Subtracting from 813368863317 its reverse (713368863318), we obtain a palindrome (99999999999).

The spelling of 813368863317 in words is "eight hundred thirteen billion, three hundred sixty-eight million, eight hundred sixty-three thousand, three hundred seventeen".