68509286086317 has 8 divisors (see below), whose sum is σ = 91856026038240. Its totient is φ = 45417701762640.

The previous prime is 68509286086313. The next prime is 68509286086357. The reversal of 68509286086317 is 71368068290586.

It is a happy number.

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

It is not a de Polignac number, because 68509286086317 - 2² = 68509286086313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68509286086313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63788906434 + ... + 63788907507.

It is an arithmetic number, because the mean of its divisors is an integer number (11482003254780).

Almost surely, 2^{68509286086317} is an apocalyptic number.

It is an amenable number.

68509286086317 is a deficient number, since it is larger than the sum of its proper divisors (23346739951923).

68509286086317 is a wasteful number, since it uses less digits than its factorization.

68509286086317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127577814123.

The product of its (nonzero) digits is 209018880, while the sum is 69.

The spelling of 68509286086317 in words is "sixty-eight trillion, five hundred nine billion, two hundred eighty-six million, eighty-six thousand, three hundred seventeen".