189867244044 has 48 divisors (see below), whose sum is σ = 451859340800. Its totient is φ = 62038357056.

The previous prime is 189867244001. The next prime is 189867244051. The reversal of 189867244044 is 440442768981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588667 + ... + 852210.

Almost surely, 2^189867244044 is an apocalyptic number.

It is an amenable number.

189867244044 is an abundant number, since it is smaller than the sum of its proper divisors (261992096756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189867244044 is a wasteful number, since it uses less digits than its factorization.

189867244044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441102 (or 1441100 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 189867244044 in words is "one hundred eighty-nine billion, eight hundred sixty-seven million, two hundred forty-four thousand, forty-four".