67993239842 has 24 divisors (see below), whose sum is σ = 112270417308. Its totient is φ = 30860292320.

The previous prime is 67993239841. The next prime is 67993239851. The reversal of 67993239842 is 24893239976.

It can be written as a sum of positive squares in 2 ways, for example, as 67169607241 + 823632601 = 259171^2 + 28699^2 .

It is not an unprimeable number, because it can be changed into a prime (67993239841) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 43673 + ... + 371340.

Almost surely, 2^67993239842 is an apocalyptic number.

67993239842 is a deficient number, since it is larger than the sum of its proper divisors (44277177466).

67993239842 is a wasteful number, since it uses less digits than its factorization.

67993239842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415714 (or 415703 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 62.

The spelling of 67993239842 in words is "sixty-seven billion, nine hundred ninety-three million, two hundred thirty-nine thousand, eight hundred forty-two".