189580121484 has 192 divisors, whose sum is σ = 520353695232. Its totient is φ = 53191987200.

The previous prime is 189580121453. The next prime is 189580121513. The reversal of 189580121484 is 484121085981.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 10829979 + ... + 10847469.

It is an arithmetic number, because the mean of its divisors is an integer number (2710175496).

Almost surely, 2^189580121484 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 189580121484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260176847616).

189580121484 is an abundant number, since it is smaller than the sum of its proper divisors (330773573748).

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

189580121484 is a wasteful number, since it uses less digits than its factorization.

189580121484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17656 (or 17654 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 51.

The spelling of 189580121484 in words is "one hundred eighty-nine billion, five hundred eighty million, one hundred twenty-one thousand, four hundred eighty-four".