68718565 has 8 divisors (see below), whose sum is σ = 82833408. Its totient is φ = 54727440.

The previous prime is 68718523. The next prime is 68718569. The reversal of 68718565 is 56581786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68718565 - 2¹¹ = 68716517 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 (68718569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29701 + ... + 31930.

It is an arithmetic number, because the mean of its divisors is an integer number (10354176).

Almost surely, 2^68718565 is an apocalyptic number.

It is an amenable number.

68718565 is a deficient number, since it is larger than the sum of its proper divisors (14114843).

68718565 is a wasteful number, since it uses less digits than its factorization.

68718565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61859.

The product of its digits is 403200, while the sum is 46.

The square root of 68718565 is about 8289.6661573311. Note that the first 3 decimals coincide. The cubic root of 68718565 is about 409.5981885353.

The spelling of 68718565 in words is "sixty-eight million, seven hundred eighteen thousand, five hundred sixty-five".