68365056387 has 16 divisors (see below), whose sum is σ = 92004560928. Its totient is φ = 45151518720.

The previous prime is 68365056377. The next prime is 68365056401. The reversal of 68365056387 is 78365056386.

It is not a de Polignac number, because 68365056387 - 2¹¹ = 68365054339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68365056377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668587 + ... + 764027.

It is an arithmetic number, because the mean of its divisors is an integer number (5750285058).

Almost surely, 2^68365056387 is an apocalyptic number.

68365056387 is a deficient number, since it is larger than the sum of its proper divisors (23639504541).

68365056387 is a wasteful number, since it uses less digits than its factorization.

68365056387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97670.

The product of its (nonzero) digits is 21772800, while the sum is 57.

Subtracting 68365056387 from its reverse (78365056386), we obtain a palindrome (9999999999).

The spelling of 68365056387 in words is "sixty-eight billion, three hundred sixty-five million, fifty-six thousand, three hundred eighty-seven".