189150187396 has 9 divisors (see below), whose sum is σ = 331014350149. Its totient is φ = 94574658784.

The previous prime is 189150187367. The next prime is 189150187397. The reversal of 189150187396 is 693781051981.

The square root of 189150187396 is 434914.

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

It can be written as a sum of positive squares in only one way, i.e., 54854324100 + 134295863296 = 234210^2 + 366464^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189150187396.

It is not an unprimeable number, because it can be changed into a prime (189150187397) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 761100 + ... + 978556.

Almost surely, 2^189150187396 is an apocalyptic number.

189150187396 is the 434914-th square number.

It is an amenable number.

189150187396 is a deficient number, since it is larger than the sum of its proper divisors (141864162753).

189150187396 is an frugal number, since it uses more digits than its factorization.

189150187396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434918 (or 217459 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 58.

The spelling of 189150187396 in words is "one hundred eighty-nine billion, one hundred fifty million, one hundred eighty-seven thousand, three hundred ninety-six".