520648518492 has 18 divisors (see below), whose sum is σ = 1316083755168. Its totient is φ = 173549506152.

The previous prime is 520648518487. The next prime is 520648518503. The reversal of 520648518492 is 294815846025.

520648518492 is a `hidden beast` number, since 5 + 2 + 0 + 64 + 85 + 18 + 492 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7231229388 + ... + 7231229459.

It is an arithmetic number, because the mean of its divisors is an integer number (73115764176).

Almost surely, 2^520648518492 is an apocalyptic number.

It is an amenable number.

520648518492 is an abundant number, since it is smaller than the sum of its proper divisors (795435236676).

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

520648518492 is a wasteful number, since it uses less digits than its factorization.

520648518492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14462458857 (or 14462458852 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 520648518492 in words is "five hundred twenty billion, six hundred forty-eight million, five hundred eighteen thousand, four hundred ninety-two".