68147444185 has 16 divisors (see below), whose sum is σ = 83858366592. Its totient is φ = 53133091200.

The previous prime is 68147444177. The next prime is 68147444203. The reversal of 68147444185 is 58144474186.

It is not a de Polignac number, because 68147444185 - 2³ = 68147444177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26350 + ... + 370120.

It is an arithmetic number, because the mean of its divisors is an integer number (5241147912).

Almost surely, 2^68147444185 is an apocalyptic number.

It is an amenable number.

68147444185 is a deficient number, since it is larger than the sum of its proper divisors (15710922407).

68147444185 is a wasteful number, since it uses less digits than its factorization.

68147444185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344784.

The product of its digits is 3440640, while the sum is 52.

The spelling of 68147444185 in words is "sixty-eight billion, one hundred forty-seven million, four hundred forty-four thousand, one hundred eighty-five".