68685747365760 has 1920 divisors, whose sum is σ = 272348859924000. Its totient is φ = 14720149979136.

The previous prime is 68685747365759. The next prime is 68685747365773. The reversal of 68685747365760 is 6756374758686.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 247962986742 + ... + 247962987018.

Almost surely, 2^{68685747365760} is an apocalyptic number.

68685747365760 is a gapful number since it is divisible by the number (60) 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 68685747365760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136174429962000).

68685747365760 is an abundant number, since it is smaller than the sum of its proper divisors (203663112558240).

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

68685747365760 is a wasteful number, since it uses less digits than its factorization.

68685747365760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 8534937600, while the sum is 78.

The spelling of 68685747365760 in words is "sixty-eight trillion, six hundred eighty-five billion, seven hundred forty-seven million, three hundred sixty-five thousand, seven hundred sixty".