68776733105 has 8 divisors (see below), whose sum is σ = 82533508200. Its totient is φ = 55020434176.

The previous prime is 68776733063. The next prime is 68776733141. The reversal of 68776733105 is 50133767786.

It can be written as a sum of positive squares in 4 ways, for example, as 7085598976 + 61691134129 = 84176^2 + 248377^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68776733105 - 2⁶ = 68776733041 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423641 + ... + 563049.

It is an arithmetic number, because the mean of its divisors is an integer number (10316688525).

Almost surely, 2^68776733105 is an apocalyptic number.

It is an amenable number.

68776733105 is a deficient number, since it is larger than the sum of its proper divisors (13756775095).

68776733105 is a wasteful number, since it uses less digits than its factorization.

68776733105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238083.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 68776733105 in words is "sixty-eight billion, seven hundred seventy-six million, seven hundred thirty-three thousand, one hundred five".