68844659445 has 12 divisors (see below), whose sum is σ = 119330743116. Its totient is φ = 36717151680.

The previous prime is 68844659423. The next prime is 68844659453. The reversal of 68844659445 is 54495644886.

68844659445 is a `hidden beast` number, since 6 + 8 + 84 + 465 + 94 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17599471569 + 51245187876 = 132663^2 + 226374^2 .

It is not a de Polignac number, because 68844659445 - 2¹¹ = 68844657397 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 764940616 + ... + 764940705.

It is an arithmetic number, because the mean of its divisors is an integer number (9944228593).

Almost surely, 2^68844659445 is an apocalyptic number.

It is an amenable number.

68844659445 is a deficient number, since it is larger than the sum of its proper divisors (50486083671).

68844659445 is a wasteful number, since it uses less digits than its factorization.

68844659445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529881332 (or 1529881329 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 63.

The spelling of 68844659445 in words is "sixty-eight billion, eight hundred forty-four million, six hundred fifty-nine thousand, four hundred forty-five".