189731088530 has 8 divisors (see below), whose sum is σ = 341515959372. Its totient is φ = 75892435408.

The previous prime is 189731088523. The next prime is 189731088619. The reversal of 189731088530 is 35880137981.

It is a happy number.

189731088530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 189631508089 + 99580441 = 435467^2 + 9979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9486554417 + ... + 9486554436.

Almost surely, 2^189731088530 is an apocalyptic number.

189731088530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189731088530 is a deficient number, since it is larger than the sum of its proper divisors (151784870842).

189731088530 is a wasteful number, since it uses less digits than its factorization.

189731088530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18973108860.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 189731088530 in words is "one hundred eighty-nine billion, seven hundred thirty-one million, eighty-eight thousand, five hundred thirty".