8138692968317 has 16 divisors (see below), whose sum is σ = 8273849006592. Its totient is φ = 8004131995440.

The previous prime is 8138692968313. The next prime is 8138692968359. The reversal of 8138692968317 is 7138692968318.

It is a cyclic number.

It is not a de Polignac number, because 8138692968317 - 2² = 8138692968313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138692968313) 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, 46122218 + ... + 46298340.

It is an arithmetic number, because the mean of its divisors is an integer number (517115562912).

Almost surely, 2^{8138692968317} is an apocalyptic number.

It is an amenable number.

8138692968317 is a deficient number, since it is larger than the sum of its proper divisors (135156038275).

8138692968317 is a wasteful number, since it uses less digits than its factorization.

8138692968317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177808.

The product of its digits is 188116992, while the sum is 71.

Subtracting from 8138692968317 its reverse (7138692968318), we obtain a palindrome (999999999999).

The spelling of 8138692968317 in words is "eight trillion, one hundred thirty-eight billion, six hundred ninety-two million, nine hundred sixty-eight thousand, three hundred seventeen".