189300748788 has 144 divisors (see below), whose sum is σ = 521787515200. Its totient is φ = 59338344960.

The previous prime is 189300748729. The next prime is 189300748789. The reversal of 189300748788 is 887847003981.

189300748788 is a `hidden beast` number, since 189 + 300 + 74 + 8 + 7 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189300748789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58083903 + ... + 58087161.

Almost surely, 2^189300748788 is an apocalyptic number.

189300748788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189300748788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260893757600).

189300748788 is an abundant number, since it is smaller than the sum of its proper divisors (332486766412).

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

189300748788 is a wasteful number, since it uses less digits than its factorization.

189300748788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167 (or 5142 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 63.

The spelling of 189300748788 in words is "one hundred eighty-nine billion, three hundred million, seven hundred forty-eight thousand, seven hundred eighty-eight".