189144327275 has 24 divisors (see below), whose sum is σ = 240330326208. Its totient is φ = 147581280000.

The previous prime is 189144327271. The next prime is 189144327277. The reversal of 189144327275 is 572723441981.

It is a happy number.

It is not a de Polignac number, because 189144327275 - 2² = 189144327271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189144327271) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3696365 + ... + 3747185.

It is an arithmetic number, because the mean of its divisors is an integer number (10013763592).

Almost surely, 2^189144327275 is an apocalyptic number.

189144327275 is a deficient number, since it is larger than the sum of its proper divisors (51185998933).

189144327275 is a wasteful number, since it uses less digits than its factorization.

189144327275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54503 (or 54498 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 189144327275 in words is "one hundred eighty-nine billion, one hundred forty-four million, three hundred twenty-seven thousand, two hundred seventy-five".