189584968873 has 4 divisors (see below), whose sum is σ = 191356791120. Its totient is φ = 187813146628.

The previous prime is 189584968861. The next prime is 189584968879. The reversal of 189584968873 is 378869485981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 189584968873 - 2¹³ = 189584960681 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 189584968873.

It is not an unprimeable number, because it can be changed into a prime (189584968879) 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, 885910963 + ... + 885911176.

It is an arithmetic number, because the mean of its divisors is an integer number (47839197780).

Almost surely, 2^189584968873 is an apocalyptic number.

It is an amenable number.

189584968873 is a deficient number, since it is larger than the sum of its proper divisors (1771822247).

189584968873 is a wasteful number, since it uses less digits than its factorization.

189584968873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771822246.

The product of its digits is 836075520, while the sum is 76.

The spelling of 189584968873 in words is "one hundred eighty-nine billion, five hundred eighty-four million, nine hundred sixty-eight thousand, eight hundred seventy-three".