68187113198569 has 8 divisors (see below), whose sum is σ = 68198606910720. Its totient is φ = 68175619954176.

The previous prime is 68187113198447. The next prime is 68187113198629. The reversal of 68187113198569 is 96589131178186.

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

It is a cyclic number.

It is not a de Polignac number, because 68187113198569 - 2⁷ = 68187113198441 is a prime.

It is a super-2 number, since 2×68187113198569² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68187113195569) 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, 406253737 + ... + 406421545.

It is an arithmetic number, because the mean of its divisors is an integer number (8524825863840).

Almost surely, 2^{68187113198569} is an apocalyptic number.

It is an amenable number.

68187113198569 is a deficient number, since it is larger than the sum of its proper divisors (11493712151).

68187113198569 is a wasteful number, since it uses less digits than its factorization.

68187113198569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233879.

The product of its digits is 156764160, while the sum is 73.

The spelling of 68187113198569 in words is "sixty-eight trillion, one hundred eighty-seven billion, one hundred thirteen million, one hundred ninety-eight thousand, five hundred sixty-nine".