68112116841 has 4 divisors (see below), whose sum is σ = 90816155792. Its totient is φ = 45408077892.

The previous prime is 68112116803. The next prime is 68112116843. The reversal of 68112116841 is 14861121186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68112116841 - 2⁷ = 68112116713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68112116841.

It is not an unprimeable number, because it can be changed into a prime (68112116843) 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, 11352019471 + ... + 11352019476.

It is an arithmetic number, because the mean of its divisors is an integer number (22704038948).

Almost surely, 2^68112116841 is an apocalyptic number.

It is an amenable number.

68112116841 is a deficient number, since it is larger than the sum of its proper divisors (22704038951).

68112116841 is a wasteful number, since it uses less digits than its factorization.

68112116841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22704038950.

The product of its digits is 18432, while the sum is 39.

The spelling of 68112116841 in words is "sixty-eight billion, one hundred twelve million, one hundred sixteen thousand, eight hundred forty-one".