187173675145 has 16 divisors (see below), whose sum is σ = 238868362368. Its totient is φ = 140309912320.

The previous prime is 187173675107. The next prime is 187173675173. The reversal of 187173675145 is 541576371781.

It is not a de Polignac number, because 187173675145 - 2¹¹ = 187173673097 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 4831021 + ... + 4869610.

It is an arithmetic number, because the mean of its divisors is an integer number (14929272648).

Almost surely, 2^187173675145 is an apocalyptic number.

It is an amenable number.

187173675145 is a deficient number, since it is larger than the sum of its proper divisors (51694687223).

187173675145 is a wasteful number, since it uses less digits than its factorization.

187173675145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700880.

The product of its digits is 4939200, while the sum is 55.

The spelling of 187173675145 in words is "one hundred eighty-seven billion, one hundred seventy-three million, six hundred seventy-five thousand, one hundred forty-five".