189589983028 has 12 divisors (see below), whose sum is σ = 331884360612. Its totient is φ = 94765880000.

The previous prime is 189589982999. The next prime is 189589983061. The reversal of 189589983028 is 820389985981.

It can be written as a sum of positive squares in 2 ways, for example, as 122799783184 + 66790199844 = 350428^2 + 258438^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7263223 + ... + 7289278.

It is an arithmetic number, because the mean of its divisors is an integer number (27657030051).

Almost surely, 2^189589983028 is an apocalyptic number.

It is an amenable number.

189589983028 is a deficient number, since it is larger than the sum of its proper divisors (142294377584).

189589983028 is a wasteful number, since it uses less digits than its factorization.

189589983028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14555762 (or 14555760 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 70.

The spelling of 189589983028 in words is "one hundred eighty-nine billion, five hundred eighty-nine million, nine hundred eighty-three thousand, twenty-eight".