520284731812 has 12 divisors (see below), whose sum is σ = 915950367360. Its totient is φ = 258584626856.

The previous prime is 520284731783. The next prime is 520284731819. The reversal of 520284731812 is 218137482025.

It is not an unprimeable number, because it can be changed into a prime (520284731819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389434012 + ... + 389435347.

It is an arithmetic number, because the mean of its divisors is an integer number (76329197280).

Almost surely, 2^520284731812 is an apocalyptic number.

It is an amenable number.

520284731812 is a deficient number, since it is larger than the sum of its proper divisors (395665635548).

520284731812 is a wasteful number, since it uses less digits than its factorization.

520284731812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778869530 (or 778869528 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 520284731812 in words is "five hundred twenty billion, two hundred eighty-four million, seven hundred thirty-one thousand, eight hundred twelve".