67373708138 has 8 divisors (see below), whose sum is σ = 110247886080. Its totient is φ = 30624412780.

The previous prime is 67373708137. The next prime is 67373708161. The reversal of 67373708138 is 83180737376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 67373708138.

It is not an unprimeable number, because it can be changed into a prime (67373708137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531220618 + ... + 1531220661.

It is an arithmetic number, because the mean of its divisors is an integer number (13780985760).

Almost surely, 2^67373708138 is an apocalyptic number.

67373708138 is a deficient number, since it is larger than the sum of its proper divisors (42874177942).

67373708138 is a wasteful number, since it uses less digits than its factorization.

67373708138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062441292.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 67373708138 in words is "sixty-seven billion, three hundred seventy-three million, seven hundred eight thousand, one hundred thirty-eight".