68243927775 has 96 divisors (see below), whose sum is σ = 117755129856. Its totient is φ = 34836480000.

The previous prime is 68243927771. The next prime is 68243927777. The reversal of 68243927775 is 57772934286.

It is a happy number.

It is not a de Polignac number, because 68243927775 - 2² = 68243927771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68243927771) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 108151710 + ... + 108152340.

It is an arithmetic number, because the mean of its divisors is an integer number (1226615936).

Almost surely, 2^68243927775 is an apocalyptic number.

68243927775 is a deficient number, since it is larger than the sum of its proper divisors (49511202081).

68243927775 is a wasteful number, since it uses less digits than its factorization.

68243927775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1108 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 60.

The spelling of 68243927775 in words is "sixty-eight billion, two hundred forty-three million, nine hundred twenty-seven thousand, seven hundred seventy-five".