68665125694 has 16 divisors (see below), whose sum is σ = 112827352176. Its totient is φ = 31081910400.

The previous prime is 68665125667. The next prime is 68665125709. The reversal of 68665125694 is 49652156686.

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, 6470097 + ... + 6480700.

It is an arithmetic number, because the mean of its divisors is an integer number (7051709511).

Almost surely, 2^68665125694 is an apocalyptic number.

68665125694 is a deficient number, since it is larger than the sum of its proper divisors (44162226482).

68665125694 is a wasteful number, since it uses less digits than its factorization.

68665125694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12951051.

The product of its digits is 18662400, while the sum is 58.

The spelling of 68665125694 in words is "sixty-eight billion, six hundred sixty-five million, one hundred twenty-five thousand, six hundred ninety-four".