68106168851 has 16 divisors (see below), whose sum is σ = 78215267328. Its totient is φ = 58092336000.

The previous prime is 68106168827. The next prime is 68106168853. The reversal of 68106168851 is 15886160186.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68106168851 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 68106168851.

It is not an unprimeable number, because it can be changed into a prime (68106168853) 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, 2433926 + ... + 2461748.

It is an arithmetic number, because the mean of its divisors is an integer number (4888454208).

Almost surely, 2^68106168851 is an apocalyptic number.

68106168851 is a deficient number, since it is larger than the sum of its proper divisors (10109098477).

68106168851 is a wasteful number, since it uses less digits than its factorization.

68106168851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29522.

The product of its (nonzero) digits is 552960, while the sum is 50.

The spelling of 68106168851 in words is "sixty-eight billion, one hundred six million, one hundred sixty-eight thousand, eight hundred fifty-one".