68110685149 has 16 divisors (see below), whose sum is σ = 74675776000. Its totient is φ = 61738407360.

The previous prime is 68110685087. The next prime is 68110685177. The reversal of 68110685149 is 94158601186.

It is a cyclic number.

It is not a de Polignac number, because 68110685149 - 2¹⁹ = 68110160861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68110685179) 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, 410602 + ... + 552100.

It is an arithmetic number, because the mean of its divisors is an integer number (4667236000).

Almost surely, 2^68110685149 is an apocalyptic number.

It is an amenable number.

68110685149 is a deficient number, since it is larger than the sum of its proper divisors (6565090851).

68110685149 is a wasteful number, since it uses less digits than its factorization.

68110685149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142180.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 68110685149 in words is "sixty-eight billion, one hundred ten million, six hundred eighty-five thousand, one hundred forty-nine".