189085989305352 has 128 divisors (see below), whose sum is σ = 510117718118400. Its totient is φ = 58191202341888.

The previous prime is 189085989305303. The next prime is 189085989305357. The reversal of 189085989305352 is 253503989580981.

It is a super-2 number, since 2×189085989305352² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189085989305357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7937628 + ... + 21004235.

It is an arithmetic number, because the mean of its divisors is an integer number (3985294672800).

Almost surely, 2^{189085989305352} is an apocalyptic number.

189085989305352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189085989305352 is an abundant number, since it is smaller than the sum of its proper divisors (321031728813048).

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

189085989305352 is a wasteful number, since it uses less digits than its factorization.

189085989305352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28942195 (or 28942191 counting only the distinct ones).

The product of its (nonzero) digits is 839808000, while the sum is 75.

The spelling of 189085989305352 in words is "one hundred eighty-nine trillion, eighty-five billion, nine hundred eighty-nine million, three hundred five thousand, three hundred fifty-two".