68853138588 has 120 divisors (see below), whose sum is σ = 194008263680. Its totient is φ = 21167360640.

The previous prime is 68853138577. The next prime is 68853138593. The reversal of 68853138588 is 88583135886.

68853138588 is a `hidden beast` number, since 68 + 8 + 531 + 38 + 5 + 8 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5380758 + ... + 5393538.

Almost surely, 2^68853138588 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 68853138588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97004131840).

68853138588 is an abundant number, since it is smaller than the sum of its proper divisors (125155125092).

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

68853138588 is a wasteful number, since it uses less digits than its factorization.

68853138588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14089 (or 14078 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 63.

The spelling of 68853138588 in words is "sixty-eight billion, eight hundred fifty-three million, one hundred thirty-eight thousand, five hundred eighty-eight".