68816510799 has 64 divisors (see below), whose sum is σ = 106391232000. Its totient is φ = 39272325120.

The previous prime is 68816510771. The next prime is 68816510809. The reversal of 68816510799 is 99701561886.

It is not a de Polignac number, because 68816510799 - 2¹¹ = 68816508751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68816510759) 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 63 ways as a sum of consecutive naturals, for example, 5023239 + ... + 5036919.

It is an arithmetic number, because the mean of its divisors is an integer number (1662363000).

Almost surely, 2^68816510799 is an apocalyptic number.

68816510799 is a deficient number, since it is larger than the sum of its proper divisors (37574721201).

68816510799 is a wasteful number, since it uses less digits than its factorization.

68816510799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13928.

The product of its (nonzero) digits is 6531840, while the sum is 60.

The spelling of 68816510799 in words is "sixty-eight billion, eight hundred sixteen million, five hundred ten thousand, seven hundred ninety-nine".