189489477183 has 16 divisors (see below), whose sum is σ = 266974725120. Its totient is φ = 119304323424.

The previous prime is 189489477157. The next prime is 189489477217. The reversal of 189489477183 is 381774984981.

It is not a de Polignac number, because 189489477183 - 2¹⁴ = 189489460799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189489277183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17375716 + ... + 17386617.

It is an arithmetic number, because the mean of its divisors is an integer number (16685920320).

Almost surely, 2^189489477183 is an apocalyptic number.

189489477183 is a deficient number, since it is larger than the sum of its proper divisors (77485247937).

189489477183 is a wasteful number, since it uses less digits than its factorization.

189489477183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34762438.

The product of its digits is 97542144, while the sum is 69.

The spelling of 189489477183 in words is "one hundred eighty-nine billion, four hundred eighty-nine million, four hundred seventy-seven thousand, one hundred eighty-three".