189346256544 has 48 divisors (see below), whose sum is σ = 497381133312. Its totient is φ = 63071328768.

The previous prime is 189346256543. The next prime is 189346256549. The reversal of 189346256544 is 445652643981.

It is a happy number.

189346256544 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (189346256543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 550624 + ... + 825759.

It is an arithmetic number, because the mean of its divisors is an integer number (10362106944).

Almost surely, 2^189346256544 is an apocalyptic number.

It is an amenable number.

189346256544 is an abundant number, since it is smaller than the sum of its proper divisors (308034876768).

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

189346256544 is a wasteful number, since it uses less digits than its factorization.

189346256544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377829 (or 1377821 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 57.

The spelling of 189346256544 in words is "one hundred eighty-nine billion, three hundred forty-six million, two hundred fifty-six thousand, five hundred forty-four".