68183717141 has 4 divisors (see below), whose sum is σ = 68184290784. Its totient is φ = 68183143500.

The previous prime is 68183717099. The next prime is 68183717149. The reversal of 68183717141 is 14171738186.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68183717141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68183717149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34595 + ... + 370896.

It is an arithmetic number, because the mean of its divisors is an integer number (17046072696).

Almost surely, 2^68183717141 is an apocalyptic number.

It is an amenable number.

68183717141 is a deficient number, since it is larger than the sum of its proper divisors (573643).

68183717141 is a wasteful number, since it uses less digits than its factorization.

68183717141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573642.

The product of its digits is 225792, while the sum is 47.

The spelling of 68183717141 in words is "sixty-eight billion, one hundred eighty-three million, seven hundred seventeen thousand, one hundred forty-one".