68686668141 has 48 divisors (see below), whose sum is σ = 114201838080. Its totient is φ = 35953519680.

The previous prime is 68686668109. The next prime is 68686668191. The reversal of 68686668141 is 14186668686.

It is not a de Polignac number, because 68686668141 - 2⁵ = 68686668109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68686668191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 391050 + ... + 538788.

It is an arithmetic number, because the mean of its divisors is an integer number (2379204960).

Almost surely, 2^68686668141 is an apocalyptic number.

It is an amenable number.

68686668141 is a deficient number, since it is larger than the sum of its proper divisors (45515169939).

68686668141 is a wasteful number, since it uses less digits than its factorization.

68686668141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147906 (or 147893 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 60.

The spelling of 68686668141 in words is "sixty-eight billion, six hundred eighty-six million, six hundred sixty-eight thousand, one hundred forty-one".