189727423620 has 48 divisors (see below), whose sum is σ = 607127756928. Its totient is φ = 43366268160.

The previous prime is 189727423553. The next prime is 189727423621. The reversal of 189727423620 is 26324727981.

189727423620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (189727423621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225865561 + ... + 225866400.

It is an arithmetic number, because the mean of its divisors is an integer number (12648494936).

Almost surely, 2^189727423620 is an apocalyptic number.

189727423620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189727423620 is an abundant number, since it is smaller than the sum of its proper divisors (417400333308).

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

189727423620 is a wasteful number, since it uses less digits than its factorization.

189727423620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451731980 (or 451731978 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 189727423620 in words is "one hundred eighty-nine billion, seven hundred twenty-seven million, four hundred twenty-three thousand, six hundred twenty".