189321605825 has 24 divisors (see below), whose sum is σ = 264361817856. Its totient is φ = 133246872000.

The previous prime is 189321605813. The next prime is 189321605839. The reversal of 189321605825 is 528506123981.

It is not a de Polignac number, because 189321605825 - 2⁸ = 189321605569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11095382 + ... + 11112431.

It is an arithmetic number, because the mean of its divisors is an integer number (11015075744).

Almost surely, 2^189321605825 is an apocalyptic number.

It is an amenable number.

189321605825 is a deficient number, since it is larger than the sum of its proper divisors (75040212031).

189321605825 is a wasteful number, since it uses less digits than its factorization.

189321605825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22207865 (or 22207860 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 189321605825 in words is "one hundred eighty-nine billion, three hundred twenty-one million, six hundred five thousand, eight hundred twenty-five".