68786454528 has 720 divisors, whose sum is σ = 243604247040. Its totient is φ = 19110297600.

The previous prime is 68786454439. The next prime is 68786454553. The reversal of 68786454528 is 82545468786.

68786454528 is a `hidden beast` number, since 6 + 8 + 7 + 8 + 64 + 545 + 28 = 666.

It is a super-2 number, since 2×68786454528² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2218917873 + ... + 2218917903.

It is an arithmetic number, because the mean of its divisors is an integer number (338339232).

Almost surely, 2^68786454528 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 68786454528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121802123520).

68786454528 is an abundant number, since it is smaller than the sum of its proper divisors (174817792512).

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

68786454528 is an equidigital number, since it uses as much as digits as its factorization.

68786454528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 66 counting only the distinct ones).

The product of its digits is 103219200, while the sum is 63.

The spelling of 68786454528 in words is "sixty-eight billion, seven hundred eighty-six million, four hundred fifty-four thousand, five hundred twenty-eight".