189744898535670 has 128 divisors (see below), whose sum is σ = 472694225375232. Its totient is φ = 48694251110400.

The previous prime is 189744898535611. The next prime is 189744898535683. The reversal of 189744898535670 is 76535898447981.

189744898535670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 238414642 + ... + 239209178.

It is an arithmetic number, because the mean of its divisors is an integer number (3692923635744).

Almost surely, 2^{189744898535670} is an apocalyptic number.

189744898535670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 189744898535670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236347112687616).

189744898535670 is an abundant number, since it is smaller than the sum of its proper divisors (282949326839562).

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

189744898535670 is a wasteful number, since it uses less digits than its factorization.

189744898535670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796006.

The product of its (nonzero) digits is 14631321600, while the sum is 84.

The spelling of 189744898535670 in words is "one hundred eighty-nine trillion, seven hundred forty-four billion, eight hundred ninety-eight million, five hundred thirty-five thousand, six hundred seventy".