520519841280 has 960 divisors, whose sum is σ = 2011881231360. Its totient is φ = 128564527104.

The previous prime is 520519841279. The next prime is 520519841291. The reversal of 520519841280 is 82148915025.

520519841280 is a `hidden beast` number, since 5 + 2 + 0 + 519 + 8 + 4 + 128 + 0 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 555516972 + ... + 555517908.

It is an arithmetic number, because the mean of its divisors is an integer number (2095709616).

Almost surely, 2^520519841280 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 520519841280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005940615680).

520519841280 is an abundant number, since it is smaller than the sum of its proper divisors (1491361390080).

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

520519841280 is an equidigital number, since it uses as much as digits as its factorization.

520519841280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 520519841280 in words is "five hundred twenty billion, five hundred nineteen million, eight hundred forty-one thousand, two hundred eighty".