189159298972 has 18 divisors (see below), whose sum is σ = 378323200808. Its totient is φ = 81067284672.

The previous prime is 189159298949. The next prime is 189159299023. The reversal of 189159298972 is 279892951981.

It is a happy number.

189159298972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2260308 + ... + 2342500.

Almost surely, 2^189159298972 is an apocalyptic number.

It is an amenable number.

189159298972 is an abundant number, since it is smaller than the sum of its proper divisors (189163901836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189159298972 is an frugal number, since it uses more digits than its factorization.

189159298972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164397 (or 82202 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 70.

The spelling of 189159298972 in words is "one hundred eighty-nine billion, one hundred fifty-nine million, two hundred ninety-eight thousand, nine hundred seventy-two".