68173725165534 has 192 divisors, whose sum is σ = 162477139368960. Its totient is φ = 20581326754560.

The previous prime is 68173725165509. The next prime is 68173725165541. The reversal of 68173725165534 is 43556152737186.

68173725165534 is a `hidden beast` number, since 6 + 8 + 1 + 7 + 3 + 72 + 5 + 1 + 6 + 553 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 730936987 + ... + 731030249.

It is an arithmetic number, because the mean of its divisors is an integer number (846235100880).

Almost surely, 2^{68173725165534} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68173725165534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81238569684480).

68173725165534 is an abundant number, since it is smaller than the sum of its proper divisors (94303414203426).

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

68173725165534 is a wasteful number, since it uses less digits than its factorization.

68173725165534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94335 (or 94332 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 63.

The spelling of 68173725165534 in words is "sixty-eight trillion, one hundred seventy-three billion, seven hundred twenty-five million, one hundred sixty-five thousand, five hundred thirty-four".