189031155900 has 36 divisors (see below), whose sum is σ = 546930145272. Its totient is φ = 50408308160.

The previous prime is 189031155881. The next prime is 189031155977. The reversal of 189031155900 is 9551130981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315051627 + ... + 315052226.

Almost surely, 2^189031155900 is an apocalyptic number.

189031155900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189031155900 is an abundant number, since it is smaller than the sum of its proper divisors (357898989372).

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

189031155900 is a wasteful number, since it uses less digits than its factorization.

189031155900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630103870 (or 630103863 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 42.

The spelling of 189031155900 in words is "one hundred eighty-nine billion, thirty-one million, one hundred fifty-five thousand, nine hundred".