68705056906 has 8 divisors (see below), whose sum is σ = 103059013824. Its totient is φ = 34352052300.

The previous prime is 68705056891. The next prime is 68705056909. The reversal of 68705056906 is 60965050786.

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

It is not an unprimeable number, because it can be changed into a prime (68705056909) by changing a digit.

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, 16450 + ... + 371053.

It is an arithmetic number, because the mean of its divisors is an integer number (12882376728).

Almost surely, 2^68705056906 is an apocalyptic number.

68705056906 is a deficient number, since it is larger than the sum of its proper divisors (34353956918).

68705056906 is a wasteful number, since it uses less digits than its factorization.

68705056906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476156.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 68705056906 in words is "sixty-eight billion, seven hundred five million, fifty-six thousand, nine hundred six".