189531363904 has 21 divisors (see below), whose sum is σ = 376108211587. Its totient is φ = 94763940544.

The previous prime is 189531363899. The next prime is 189531363907. The reversal of 189531363904 is 409363135981.

The square root of 189531363904 is 435352.

It is a perfect power (a square), and thus also a powerful number.

189531363904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189531363907) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3455607 + ... + 3510025.

Almost surely, 2^189531363904 is an apocalyptic number.

189531363904 is the 435352-nd square number.

It is an amenable number.

189531363904 is a deficient number, since it is larger than the sum of its proper divisors (186576847683).

189531363904 is an frugal number, since it uses more digits than its factorization.

189531363904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108850 (or 54421 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 189531363904 in words is "one hundred eighty-nine billion, five hundred thirty-one million, three hundred sixty-three thousand, nine hundred four".