520487139312 has 320 divisors, whose sum is σ = 1730870169600. Its totient is φ = 148506607872.

The previous prime is 520487139269. The next prime is 520487139323. The reversal of 520487139312 is 213931784025.

It is a happy number.

520487139312 is a `hidden beast` number, since 5 + 2 + 0 + 487 + 139 + 31 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 350024233 + ... + 350025719.

It is an arithmetic number, because the mean of its divisors is an integer number (5408969280).

Almost surely, 2^520487139312 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 520487139312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865435084800).

520487139312 is an abundant number, since it is smaller than the sum of its proper divisors (1210383030288).

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

520487139312 is a wasteful number, since it uses less digits than its factorization.

520487139312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952 (or 2928 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 520487139312 in words is "five hundred twenty billion, four hundred eighty-seven million, one hundred thirty-nine thousand, three hundred twelve".