6539009128000 has 224 divisors, whose sum is σ = 16266528165888. Its totient is φ = 2603888640000.

The previous prime is 6539009127923. The next prime is 6539009128027. The reversal of 6539009128000 is 8219009356.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3932055169 + ... + 3932056831.

It is an arithmetic number, because the mean of its divisors is an integer number (72618429312).

Almost surely, 2^{6539009128000} 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 6539009128000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8133264082944).

6539009128000 is an abundant number, since it is smaller than the sum of its proper divisors (9727519037888).

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

6539009128000 is a wasteful number, since it uses less digits than its factorization.

6539009128000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598 (or 3578 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 6539009128000 in words is "six trillion, five hundred thirty-nine billion, nine million, one hundred twenty-eight thousand".