68705056908 has 18 divisors (see below), whose sum is σ = 173671116164. Its totient is φ = 22901685624.

The previous prime is 68705056891. The next prime is 68705056909. The reversal of 68705056908 is 80965050786.

68705056908 is a `hidden beast` number, since 6 + 8 + 70 + 5 + 0 + 569 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 954236866 + ... + 954236937.

Almost surely, 2^68705056908 is an apocalyptic number.

It is an amenable number.

68705056908 is an abundant number, since it is smaller than the sum of its proper divisors (104966059256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68705056908 is a wasteful number, since it uses less digits than its factorization.

68705056908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908473813 (or 1908473808 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 68705056908 in words is "sixty-eight billion, seven hundred five million, fifty-six thousand, nine hundred eight".