68073522012 has 240 divisors, whose sum is σ = 194498304000. Its totient is φ = 20679152256.

The previous prime is 68073521977. The next prime is 68073522019. The reversal of 68073522012 is 21022537086.

68073522012 is a `hidden beast` number, since 68 + 0 + 73 + 522 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68073522019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 65517789 + ... + 65518827.

It is an arithmetic number, because the mean of its divisors is an integer number (810409600).

Almost surely, 2^68073522012 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 68073522012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97249152000).

68073522012 is an abundant number, since it is smaller than the sum of its proper divisors (126424781988).

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

68073522012 is a wasteful number, since it uses less digits than its factorization.

68073522012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1459 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 68073522012 in words is "sixty-eight billion, seventy-three million, five hundred twenty-two thousand, twelve".