68944907775744 has 648 divisors, whose sum is σ = 268366964890752. Its totient is φ = 16530240430080.

The previous prime is 68944907775707. The next prime is 68944907775773. The reversal of 68944907775744 is 44757770944986.

68944907775744 is a `hidden beast` number, since 6 + 8 + 9 + 4 + 490 + 7 + 77 + 57 + 4 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28832179 + ... + 31131725.

Almost surely, 2^{68944907775744} is an apocalyptic number.

68944907775744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68944907775744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134183482445376).

68944907775744 is an abundant number, since it is smaller than the sum of its proper divisors (199422057115008).

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

68944907775744 is a wasteful number, since it uses less digits than its factorization.

68944907775744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299613 (or 2299583 counting only the distinct ones).

The product of its (nonzero) digits is 11948912640, while the sum is 81.

The spelling of 68944907775744 in words is "sixty-eight trillion, nine hundred forty-four billion, nine hundred seven million, seven hundred seventy-five thousand, seven hundred forty-four".