68744988384 has 48 divisors (see below), whose sum is σ = 180477052560. Its totient is φ = 22912271360.

The previous prime is 68744988289. The next prime is 68744988407. The reversal of 68744988384 is 48388944786.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 870412 + ... + 946100.

It is an arithmetic number, because the mean of its divisors is an integer number (3759938595).

Almost surely, 2^68744988384 is an apocalyptic number.

It is an amenable number.

68744988384 is an abundant number, since it is smaller than the sum of its proper divisors (111732064176).

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

68744988384 is a wasteful number, since it uses less digits than its factorization.

68744988384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85163 (or 85155 counting only the distinct ones).

The product of its digits is 297271296, while the sum is 69.

The spelling of 68744988384 in words is "sixty-eight billion, seven hundred forty-four million, nine hundred eighty-eight thousand, three hundred eighty-four".