68885854171 has 4 divisors (see below), whose sum is σ = 68995024144. Its totient is φ = 68776684200.

The previous prime is 68885854157. The next prime is 68885854189. The reversal of 68885854171 is 17145858886.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68885854171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68885851171) 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, 54584040 + ... + 54585301.

It is an arithmetic number, because the mean of its divisors is an integer number (17248756036).

Almost surely, 2^68885854171 is an apocalyptic number.

68885854171 is a deficient number, since it is larger than the sum of its proper divisors (109169973).

68885854171 is a wasteful number, since it uses less digits than its factorization.

68885854171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109169972.

The product of its digits is 17203200, while the sum is 61.

The spelling of 68885854171 in words is "sixty-eight billion, eight hundred eighty-five million, eight hundred fifty-four thousand, one hundred seventy-one".