68243984810352 has 840 divisors, whose sum is σ = 220335400274688. Its totient is φ = 20448121075200.

The previous prime is 68243984810321. The next prime is 68243984810369. The reversal of 68243984810352 is 25301848934286.

68243984810352 is a `hidden beast` number, since 6 + 8 + 2 + 439 + 8 + 48 + 103 + 52 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68243984810352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 19548547327 + ... + 19548550817.

Almost surely, 2^{68243984810352} 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 68243984810352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110167700137344).

68243984810352 is an abundant number, since it is smaller than the sum of its proper divisors (152091415464336).

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

68243984810352 is a wasteful number, since it uses less digits than its factorization.

68243984810352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 63.

The spelling of 68243984810352 in words is "sixty-eight trillion, two hundred forty-three billion, nine hundred eighty-four million, eight hundred ten thousand, three hundred fifty-two".