189591213604 has 24 divisors (see below), whose sum is σ = 358206573368. Its totient is φ = 87283215360.

The previous prime is 189591213583. The next prime is 189591213641. The reversal of 189591213604 is 406312195981.

It is a happy number.

189591213604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25663399204 + 163927814400 = 160198^2 + 404880^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4571277 + ... + 4612564.

Almost surely, 2^189591213604 is an apocalyptic number.

It is an amenable number.

189591213604 is a deficient number, since it is larger than the sum of its proper divisors (168615359764).

189591213604 is a wasteful number, since it uses less digits than its factorization.

189591213604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9184255 (or 9184253 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 189591213604 in words is "one hundred eighty-nine billion, five hundred ninety-one million, two hundred thirteen thousand, six hundred four".