68405061012 has 24 divisors (see below), whose sum is σ = 160115325216. Its totient is φ = 22729756128.

The previous prime is 68405060993. The next prime is 68405061019. The reversal of 68405061012 is 21016050486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68405061019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8987398 + ... + 8995005.

It is an arithmetic number, because the mean of its divisors is an integer number (6671471884).

Almost surely, 2^68405061012 is an apocalyptic number.

It is an amenable number.

68405061012 is an abundant number, since it is smaller than the sum of its proper divisors (91710264204).

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

68405061012 is a wasteful number, since it uses less digits than its factorization.

68405061012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17982727 (or 17982725 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 68405061012 in words is "sixty-eight billion, four hundred five million, sixty-one thousand, twelve".