68544731727144 has 64 divisors (see below), whose sum is σ = 190403036769600. Its totient is φ = 22848123405888.

The previous prime is 68544731727139. The next prime is 68544731727167. The reversal of 68544731727144 is 44172713744586.

68544731727144 is a `hidden beast` number, since 6 + 8 + 5 + 4 + 4 + 7 + 317 + 271 + 44 = 666.

68544731727144 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×68544731727144² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46360822 + ... + 47816474.

It is an arithmetic number, because the mean of its divisors is an integer number (2975047449525).

Almost surely, 2^{68544731727144} is an apocalyptic number.

It is an amenable number.

68544731727144 is an abundant number, since it is smaller than the sum of its proper divisors (121858305042456).

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

68544731727144 is a wasteful number, since it uses less digits than its factorization.

68544731727144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673671 (or 1673661 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 63.

The spelling of 68544731727144 in words is "sixty-eight trillion, five hundred forty-four billion, seven hundred thirty-one million, seven hundred twenty-seven thousand, one hundred forty-four".