181805452348 has 12 divisors (see below), whose sum is σ = 342633352600. Its totient is φ = 83910208752.

The previous prime is 181805452333. The next prime is 181805452351. The reversal of 181805452348 is 843254508181.

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, 1748129298 + ... + 1748129401.

Almost surely, 2^181805452348 is an apocalyptic number.

It is an amenable number.

181805452348 is a deficient number, since it is larger than the sum of its proper divisors (160827900252).

181805452348 is a wasteful number, since it uses less digits than its factorization.

181805452348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496258716 (or 3496258714 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 181805452348 in words is "one hundred eighty-one billion, eight hundred five million, four hundred fifty-two thousand, three hundred forty-eight".