68371217385 has 16 divisors (see below), whose sum is σ = 109585544640. Its totient is φ = 36400783680.

The previous prime is 68371217311. The next prime is 68371217393. The reversal of 68371217385 is 58371217386.

It is not a de Polignac number, because 68371217385 - 2⁹ = 68371216873 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3982750 + ... + 3999879.

It is an arithmetic number, because the mean of its divisors is an integer number (6849096540).

Almost surely, 2^68371217385 is an apocalyptic number.

It is an amenable number.

68371217385 is a deficient number, since it is larger than the sum of its proper divisors (41214327255).

68371217385 is a wasteful number, since it uses less digits than its factorization.

68371217385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983208.

The product of its digits is 1693440, while the sum is 51.

Subtracting from 68371217385 its reverse (58371217386), we obtain a palindrome (9999999999).

The spelling of 68371217385 in words is "sixty-eight billion, three hundred seventy-one million, two hundred seventeen thousand, three hundred eighty-five".