18503481424373 has 8 divisors (see below), whose sum is σ = 20189588924736. Its totient is φ = 16818036061600.

The previous prime is 18503481424357. The next prime is 18503481424411. The reversal of 18503481424373 is 37342418430581.

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

It is a cyclic number.

It is not a de Polignac number, because 18503481424373 - 2⁴ = 18503481424357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18503481424343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165475961 + ... + 165587742.

It is an arithmetic number, because the mean of its divisors is an integer number (2523698615592).

Almost surely, 2^{18503481424373} is an apocalyptic number.

It is an amenable number.

18503481424373 is a deficient number, since it is larger than the sum of its proper divisors (1686107500363).

18503481424373 is a wasteful number, since it uses less digits than its factorization.

18503481424373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331068795.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 18503481424373 in words is "eighteen trillion, five hundred three billion, four hundred eighty-one million, four hundred twenty-four thousand, three hundred seventy-three".