68726719244 has 48 divisors (see below), whose sum is σ = 126032953536. Its totient is φ = 32730297600.

The previous prime is 68726719223. The next prime is 68726719249. The reversal of 68726719244 is 44291762786.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68726719244.

It is not an unprimeable number, because it can be changed into a prime (68726719249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26220254 + ... + 26222874.

It is an arithmetic number, because the mean of its divisors is an integer number (2625686532).

Almost surely, 2^68726719244 is an apocalyptic number.

It is an amenable number.

68726719244 is a deficient number, since it is larger than the sum of its proper divisors (57306234292).

68726719244 is a wasteful number, since it uses less digits than its factorization.

68726719244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746 (or 3744 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 56.

The spelling of 68726719244 in words is "sixty-eight billion, seven hundred twenty-six million, seven hundred nineteen thousand, two hundred forty-four".