189010908342 has 96 divisors (see below), whose sum is σ = 435200351040. Its totient is φ = 59081011200.

The previous prime is 189010908239. The next prime is 189010908343. The reversal of 189010908342 is 243809010981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189010908343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157377342 + ... + 157378542.

It is an arithmetic number, because the mean of its divisors is an integer number (4533336990).

Almost surely, 2^189010908342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189010908342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217600175520).

189010908342 is an abundant number, since it is smaller than the sum of its proper divisors (246189442698).

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

189010908342 is a wasteful number, since it uses less digits than its factorization.

189010908342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 189010908342 in words is "one hundred eighty-nine billion, ten million, nine hundred eight thousand, three hundred forty-two".