67143609208 has 16 divisors (see below), whose sum is σ = 135578441880. Its totient is φ = 30989358048.

The previous prime is 67143609191. The next prime is 67143609263. The reversal of 67143609208 is 80290634176.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322805710 + ... + 322805917.

Almost surely, 2^67143609208 is an apocalyptic number.

It is an amenable number.

67143609208 is an abundant number, since it is smaller than the sum of its proper divisors (68434832672).

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

67143609208 is a wasteful number, since it uses less digits than its factorization.

67143609208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645611646 (or 645611642 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 67143609208 in words is "sixty-seven billion, one hundred forty-three million, six hundred nine thousand, two hundred eight".