68728328760 has 256 divisors, whose sum is σ = 258556354560. Its totient is φ = 14227200000.

The previous prime is 68728328743. The next prime is 68728328771. The reversal of 68728328760 is 6782382786.

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 68728328760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 519385 + ... + 638135.

It is an arithmetic number, because the mean of its divisors is an integer number (1009985760).

Almost surely, 2^68728328760 is an apocalyptic number.

68728328760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68728328760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129278177280).

68728328760 is an abundant number, since it is smaller than the sum of its proper divisors (189828025800).

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

68728328760 is a wasteful number, since it uses less digits than its factorization.

68728328760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118838 (or 118834 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 68728328760 in words is "sixty-eight billion, seven hundred twenty-eight million, three hundred twenty-eight thousand, seven hundred sixty".