189200198954 has 16 divisors (see below), whose sum is σ = 305717600160. Its totient is φ = 87298451760.

The previous prime is 189200198953. The next prime is 189200198969. The reversal of 189200198954 is 459891002981.

189200198954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189200198954.

It is not an unprimeable number, because it can be changed into a prime (189200198953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936092 + ... + 1120119.

It is an arithmetic number, because the mean of its divisors is an integer number (19107350010).

Almost surely, 2^189200198954 is an apocalyptic number.

189200198954 is a deficient number, since it is larger than the sum of its proper divisors (116517401206).

189200198954 is a wasteful number, since it uses less digits than its factorization.

189200198954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059765.

The product of its (nonzero) digits is 1866240, while the sum is 56.

The spelling of 189200198954 in words is "one hundred eighty-nine billion, two hundred million, one hundred ninety-eight thousand, nine hundred fifty-four".