68405061011 has 16 divisors (see below), whose sum is σ = 82365653760. Its totient is φ = 55497117600.

The previous prime is 68405060993. The next prime is 68405061019. The reversal of 68405061011 is 11016050486.

It is a cyclic number.

It is not a de Polignac number, because 68405061011 - 2¹⁸ = 68404798867 is a prime.

It is a Duffinian number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81665 + ... + 378786.

It is an arithmetic number, because the mean of its divisors is an integer number (5147853360).

Almost surely, 2^68405061011 is an apocalyptic number.

68405061011 is a deficient number, since it is larger than the sum of its proper divisors (13960592749).

68405061011 is a wasteful number, since it uses less digits than its factorization.

68405061011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461594.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 68405061011 in words is "sixty-eight billion, four hundred five million, sixty-one thousand, eleven".