68187113198567 has 4 divisors (see below), whose sum is σ = 74385941671176. Its totient is φ = 61988284725960.

The previous prime is 68187113198447. The next prime is 68187113198629. The reversal of 68187113198567 is 76589131178186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68187113198567 - 2³² = 68182818231271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68187113198567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68187113108567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3099414236288 + ... + 3099414236309.

It is an arithmetic number, because the mean of its divisors is an integer number (18596485417794).

Almost surely, 2^{68187113198567} is an apocalyptic number.

68187113198567 is a deficient number, since it is larger than the sum of its proper divisors (6198828472609).

68187113198567 is a wasteful number, since it uses less digits than its factorization.

68187113198567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6198828472608.

The product of its digits is 121927680, while the sum is 71.

The spelling of 68187113198567 in words is "sixty-eight trillion, one hundred eighty-seven billion, one hundred thirteen million, one hundred ninety-eight thousand, five hundred sixty-seven".