539963297280 has 960 divisors, whose sum is σ = 2164956076800. Its totient is φ = 126506188800.

The previous prime is 539963297257. The next prime is 539963297327. The reversal of 539963297280 is 82792369935.

539963297280 is a `hidden beast` number, since 5 + 3 + 9 + 9 + 63 + 297 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 730667151 + ... + 730667889.

It is an arithmetic number, because the mean of its divisors is an integer number (2255162580).

Almost surely, 2^539963297280 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 539963297280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082478038400).

539963297280 is an abundant number, since it is smaller than the sum of its proper divisors (1624992779520).

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

539963297280 is a wasteful number, since it uses less digits than its factorization.

539963297280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 63.

The spelling of 539963297280 in words is "five hundred thirty-nine billion, nine hundred sixty-three million, two hundred ninety-seven thousand, two hundred eighty".