67445348238 has 12 divisors (see below), whose sum is σ = 146131587888. Its totient is φ = 22481782740.

The previous prime is 67445348237. The next prime is 67445348329. The reversal of 67445348238 is 83284354476.

67445348238 is a `hidden beast` number, since 6 + 74 + 4 + 534 + 8 + 2 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67445348237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1873481878 + ... + 1873481913.

It is an arithmetic number, because the mean of its divisors is an integer number (12177632324).

Almost surely, 2^67445348238 is an apocalyptic number.

67445348238 is an abundant number, since it is smaller than the sum of its proper divisors (78686239650).

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

67445348238 is a wasteful number, since it uses less digits than its factorization.

67445348238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746963799 (or 3746963796 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 54.

The spelling of 67445348238 in words is "sixty-seven billion, four hundred forty-five million, three hundred forty-eight thousand, two hundred thirty-eight".