68751349128 has 480 divisors, whose sum is σ = 243403406400. Its totient is φ = 17747009280.

The previous prime is 68751349097. The next prime is 68751349171. The reversal of 68751349128 is 82194315786.

68751349128 is a `hidden beast` number, since 6 + 87 + 51 + 3 + 491 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 125687751 + ... + 125688297.

It is an arithmetic number, because the mean of its divisors is an integer number (507090430).

Almost surely, 2^68751349128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68751349128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121701703200).

68751349128 is an abundant number, since it is smaller than the sum of its proper divisors (174652057272).

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

68751349128 is a wasteful number, since it uses less digits than its factorization.

68751349128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 799 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 68751349128 in words is "sixty-eight billion, seven hundred fifty-one million, three hundred forty-nine thousand, one hundred twenty-eight".