68159712445 has 8 divisors (see below), whose sum is σ = 89227260000. Its totient is φ = 49570699920.

The previous prime is 68159712407. The next prime is 68159712461. The reversal of 68159712445 is 54421795186.

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

It is a de Polignac number, because none of the positive numbers 2^k-68159712445 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68159712392 and 68159712401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619633695 + ... + 619633804.

It is an arithmetic number, because the mean of its divisors is an integer number (11153407500).

Almost surely, 2^68159712445 is an apocalyptic number.

It is an amenable number.

68159712445 is a deficient number, since it is larger than the sum of its proper divisors (21067547555).

68159712445 is a wasteful number, since it uses less digits than its factorization.

68159712445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239267515.

The product of its digits is 2419200, while the sum is 52.

The spelling of 68159712445 in words is "sixty-eight billion, one hundred fifty-nine million, seven hundred twelve thousand, four hundred forty-five".