68140757118744 has 192 divisors, whose sum is σ = 191234926995840. Its totient is φ = 21906689310720.

The previous prime is 68140757118737. The next prime is 68140757118761. The reversal of 68140757118744 is 44781175704186.

68140757118744 is a `hidden beast` number, since 6 + 8 + 1 + 4 + 0 + 7 + 571 + 18 + 7 + 44 = 666.

It is a super-2 number, since 2×68140757118744² (a number of 28 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 47 ways as a sum of consecutive naturals, for example, 76036314 + ... + 76927254.

It is an arithmetic number, because the mean of its divisors is an integer number (996015244770).

Almost surely, 2^{68140757118744} 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 68140757118744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95617463497920).

68140757118744 is an abundant number, since it is smaller than the sum of its proper divisors (123094169877096).

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

68140757118744 is a wasteful number, since it uses less digits than its factorization.

68140757118744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891330 (or 891323 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 63.

The spelling of 68140757118744 in words is "sixty-eight trillion, one hundred forty billion, seven hundred fifty-seven million, one hundred eighteen thousand, seven hundred forty-four".