68159712446 has 8 divisors (see below), whose sum is σ = 116845221360. Its totient is φ = 29211305328.

The previous prime is 68159712407. The next prime is 68159712461. The reversal of 68159712446 is 64421795186.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 2434275431 + ... + 2434275458.

It is an arithmetic number, because the mean of its divisors is an integer number (14605652670).

Almost surely, 2^68159712446 is an apocalyptic number.

68159712446 is a deficient number, since it is larger than the sum of its proper divisors (48685508914).

68159712446 is a wasteful number, since it uses less digits than its factorization.

68159712446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868550898.

The product of its digits is 2903040, while the sum is 53.

The spelling of 68159712446 in words is "sixty-eight billion, one hundred fifty-nine million, seven hundred twelve thousand, four hundred forty-six".