189191172082 has 32 divisors (see below), whose sum is σ = 323148631680. Its totient is φ = 82230846720.

The previous prime is 189191172047. The next prime is 189191172097. The reversal of 189191172082 is 280271191981.

189191172082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1575978 + ... + 1691770.

It is an arithmetic number, because the mean of its divisors is an integer number (10098394740).

Almost surely, 2^189191172082 is an apocalyptic number.

189191172082 is a deficient number, since it is larger than the sum of its proper divisors (133957459598).

189191172082 is a wasteful number, since it uses less digits than its factorization.

189191172082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119058.

The product of its (nonzero) digits is 145152, while the sum is 49.

The spelling of 189191172082 in words is "one hundred eighty-nine billion, one hundred ninety-one million, one hundred seventy-two thousand, eighty-two".