189181104446 has 16 divisors (see below), whose sum is σ = 298735851600. Its totient is φ = 89603448768.

The previous prime is 189181104421. The next prime is 189181104493. The reversal of 189181104446 is 644401181981.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 189181104446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167306 + ... + 637458.

It is an arithmetic number, because the mean of its divisors is an integer number (18670990725).

Almost surely, 2^189181104446 is an apocalyptic number.

189181104446 is a deficient number, since it is larger than the sum of its proper divisors (109554747154).

189181104446 is a wasteful number, since it uses less digits than its factorization.

189181104446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480763.

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 189181104446 in words is "one hundred eighty-nine billion, one hundred eighty-one million, one hundred four thousand, four hundred forty-six".