189895205248 has 160 divisors (see below), whose sum is σ = 442660964760. Its totient is φ = 81138806784.

The previous prime is 189895205231. The next prime is 189895205249. The reversal of 189895205248 is 842502598981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189895205249) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 133072311 + ... + 133073737.

Almost surely, 2^189895205248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189895205248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221330482380).

189895205248 is an abundant number, since it is smaller than the sum of its proper divisors (252765759512).

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

189895205248 is an frugal number, since it uses more digits than its factorization.

189895205248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 61.

The spelling of 189895205248 in words is "one hundred eighty-nine billion, eight hundred ninety-five million, two hundred five thousand, two hundred forty-eight".