189046347073 has 4 divisors (see below), whose sum is σ = 189216813780. Its totient is φ = 188875880368.

The previous prime is 189046347071. The next prime is 189046347089. The reversal of 189046347073 is 370743640981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370743640981 = 7 ⋅52963377283.

It can be written as a sum of positive squares in 2 ways, for example, as 48678479424 + 140367867649 = 220632^2 + 374657^2 .

It is a cyclic number.

It is not a de Polignac number, because 189046347073 - 2¹ = 189046347071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189046347073.

It is not an unprimeable number, because it can be changed into a prime (189046347071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85231690 + ... + 85233907.

It is an arithmetic number, because the mean of its divisors is an integer number (47304203445).

Almost surely, 2^189046347073 is an apocalyptic number.

It is an amenable number.

189046347073 is a deficient number, since it is larger than the sum of its proper divisors (170466707).

189046347073 is a wasteful number, since it uses less digits than its factorization.

189046347073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170466706.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 189046347073 in words is "one hundred eighty-nine billion, forty-six million, three hundred forty-seven thousand, seventy-three".