189043802918 has 8 divisors (see below), whose sum is σ = 288916000848. Its totient is φ = 92738469304.

The previous prime is 189043802873. The next prime is 189043802929. The reversal of 189043802918 is 819208340981.

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

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 189043802918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891715946 + ... + 891716157.

It is an arithmetic number, because the mean of its divisors is an integer number (36114500106).

Almost surely, 2^189043802918 is an apocalyptic number.

189043802918 is a deficient number, since it is larger than the sum of its proper divisors (99872197930).

189043802918 is a wasteful number, since it uses less digits than its factorization.

189043802918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783432158.

The product of its (nonzero) digits is 995328, while the sum is 53.

The spelling of 189043802918 in words is "one hundred eighty-nine billion, forty-three million, eight hundred two thousand, nine hundred eighteen".