189733910530 has 32 divisors (see below), whose sum is σ = 345890787840. Its totient is φ = 74922768960.

The previous prime is 189733910479. The next prime is 189733910543. The reversal of 189733910530 is 35019337981.

It is a happy number.

189733910530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9032640 + ... + 9053620.

It is an arithmetic number, because the mean of its divisors is an integer number (10809087120).

Almost surely, 2^189733910530 is an apocalyptic number.

189733910530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189733910530 is a deficient number, since it is larger than the sum of its proper divisors (156156877310).

189733910530 is a wasteful number, since it uses less digits than its factorization.

189733910530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32514.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 189733910530 in words is "one hundred eighty-nine billion, seven hundred thirty-three million, nine hundred ten thousand, five hundred thirty".