189017450023 has 8 divisors (see below), whose sum is σ = 197267545728. Its totient is φ = 180770016504.

The previous prime is 189017450021. The next prime is 189017450033. The reversal of 189017450023 is 320054710981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189017450023 - 2¹ = 189017450021 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 (189017450021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519765 + ... + 805102.

It is an arithmetic number, because the mean of its divisors is an integer number (24658443216).

Almost surely, 2^189017450023 is an apocalyptic number.

189017450023 is a deficient number, since it is larger than the sum of its proper divisors (8250095705).

189017450023 is a wasteful number, since it uses less digits than its factorization.

189017450023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331093.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 189017450023 in words is "one hundred eighty-nine billion, seventeen million, four hundred fifty thousand, twenty-three".