189219558804 has 12 divisors (see below), whose sum is σ = 441512303904. Its totient is φ = 63073186264.

The previous prime is 189219558791. The next prime is 189219558833. The reversal of 189219558804 is 408855912981.

It is a tau number, because it is divible by the number of its divisors (12).

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, 7884148272 + ... + 7884148295.

It is an arithmetic number, because the mean of its divisors is an integer number (36792691992).

Almost surely, 2^189219558804 is an apocalyptic number.

It is an amenable number.

189219558804 is an abundant number, since it is smaller than the sum of its proper divisors (252292745100).

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

189219558804 is a wasteful number, since it uses less digits than its factorization.

189219558804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15768296574 (or 15768296572 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 60.

The spelling of 189219558804 in words is "one hundred eighty-nine billion, two hundred nineteen million, five hundred fifty-eight thousand, eight hundred four".