189944832027 has 16 divisors (see below), whose sum is σ = 254854131840. Its totient is φ = 125833708032.

The previous prime is 189944832013. The next prime is 189944832029. The reversal of 189944832027 is 720238449981.

It is not a de Polignac number, because 189944832027 - 2¹¹ = 189944829979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189944832029) 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, 642363 + ... + 890235.

It is an arithmetic number, because the mean of its divisors is an integer number (15928383240).

Almost surely, 2^189944832027 is an apocalyptic number.

189944832027 is a deficient number, since it is larger than the sum of its proper divisors (64909299813).

189944832027 is a wasteful number, since it uses less digits than its factorization.

189944832027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249482.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 189944832027 in words is "one hundred eighty-nine billion, nine hundred forty-four million, eight hundred thirty-two thousand, twenty-seven".