18875901473173 has 4 divisors (see below), whose sum is σ = 18876336455200. Its totient is φ = 18875466491148.

The previous prime is 18875901473161. The next prime is 18875901473203. The reversal of 18875901473173 is 37137410957881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18875901473173 - 2⁹ = 18875901472661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18875901473113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217425915 + ... + 217512712.

It is an arithmetic number, because the mean of its divisors is an integer number (4719084113800).

Almost surely, 2^{18875901473173} is an apocalyptic number.

It is an amenable number.

18875901473173 is a deficient number, since it is larger than the sum of its proper divisors (434982027).

18875901473173 is an equidigital number, since it uses as much as digits as its factorization.

18875901473173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434982026.

The product of its (nonzero) digits is 35562240, while the sum is 64.

The spelling of 18875901473173 in words is "eighteen trillion, eight hundred seventy-five billion, nine hundred one million, four hundred seventy-three thousand, one hundred seventy-three".