189770484960 has 768 divisors, whose sum is σ = 783820800000. Its totient is φ = 42858934272.

The previous prime is 189770484941. The next prime is 189770484989. The reversal of 189770484960 is 69484077981.

189770484960 is a `hidden beast` number, since 1 + 8 + 97 + 7 + 0 + 484 + 9 + 60 = 666.

189770484960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 131875921 + ... + 131877359.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600000).

Almost surely, 2^189770484960 is an apocalyptic number.

189770484960 is a gapful number since it is divisible by the number (10) 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 189770484960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391910400000).

189770484960 is an abundant number, since it is smaller than the sum of its proper divisors (594050315040).

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

189770484960 is a wasteful number, since it uses less digits than its factorization.

189770484960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 189770484960 in words is "one hundred eighty-nine billion, seven hundred seventy million, four hundred eighty-four thousand, nine hundred sixty".