68751592128 has 140 divisors (see below), whose sum is σ = 204149611512. Its totient is φ = 22878028800.

The previous prime is 68751592121. The next prime is 68751592159. The reversal of 68751592128 is 82129515786.

68751592128 is a `hidden beast` number, since 6 + 87 + 515 + 9 + 21 + 28 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (68751592121) 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 19 ways as a sum of consecutive naturals, for example, 3104551 + ... + 3126617.

Almost surely, 2^68751592128 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 68751592128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102074805756).

68751592128 is an abundant number, since it is smaller than the sum of its proper divisors (135398019384).

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

68751592128 is a wasteful number, since it uses less digits than its factorization.

68751592128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22692 (or 22673 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The spelling of 68751592128 in words is "sixty-eight billion, seven hundred fifty-one million, five hundred ninety-two thousand, one hundred twenty-eight".