520474885128 has 192 divisors, whose sum is σ = 1627791422400. Its totient is φ = 148739351040.

The previous prime is 520474885127. The next prime is 520474885153. The reversal of 520474885128 is 821588474025.

520474885128 is a `hidden beast` number, since 5 + 2 + 0 + 47 + 4 + 88 + 512 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (520474885127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 724126 + ... + 1251122.

It is an arithmetic number, because the mean of its divisors is an integer number (8478080325).

Almost surely, 2^520474885128 is an apocalyptic number.

520474885128 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520474885128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813895711200).

520474885128 is an abundant number, since it is smaller than the sum of its proper divisors (1107316537272).

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

520474885128 is a wasteful number, since it uses less digits than its factorization.

520474885128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527092 (or 527085 counting only the distinct ones).

The product of its (nonzero) digits is 5734400, while the sum is 54.

The spelling of 520474885128 in words is "five hundred twenty billion, four hundred seventy-four million, eight hundred eighty-five thousand, one hundred twenty-eight".