520884139212 has 192 divisors, whose sum is σ = 1373533504000. Its totient is φ = 170693961984.

The previous prime is 520884139207. The next prime is 520884139213. The reversal of 520884139212 is 212931488025.

520884139212 is a `hidden beast` number, since 5 + 208 + 8 + 41 + 392 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (520884139213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 952255923 + ... + 952256469.

Almost surely, 2^520884139212 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 520884139212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686766752000).

520884139212 is an abundant number, since it is smaller than the sum of its proper divisors (852649364788).

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

520884139212 is a wasteful number, since it uses less digits than its factorization.

520884139212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 520884139212 in words is "five hundred twenty billion, eight hundred eighty-four million, one hundred thirty-nine thousand, two hundred twelve".