539529524820 has 864 divisors, whose sum is σ = 2095783732224. Its totient is φ = 110630707200.

The previous prime is 539529524771. The next prime is 539529524827. The reversal of 539529524820 is 28425925935.

It is a happy number.

539529524820 is a `hidden beast` number, since 5 + 3 + 9 + 529 + 52 + 48 + 20 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539529524827) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 288055404 + ... + 288057276.

It is an arithmetic number, because the mean of its divisors is an integer number (2425675616).

Almost surely, 2^539529524820 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 539529524820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1047891866112).

539529524820 is an abundant number, since it is smaller than the sum of its proper divisors (1556254207404).

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

539529524820 is a wasteful number, since it uses less digits than its factorization.

539529524820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 539529524820 in words is "five hundred thirty-nine billion, five hundred twenty-nine million, five hundred twenty-four thousand, eight hundred twenty".