520645323627 has 24 divisors (see below), whose sum is σ = 883519339248. Its totient is φ = 291270110400.

The previous prime is 520645323587. The next prime is 520645323637. The reversal of 520645323627 is 726323546025.

520645323627 is a `hidden beast` number, since 5 + 2 + 0 + 64 + 532 + 36 + 27 = 666.

It is not a de Polignac number, because 520645323627 - 2⁸ = 520645323371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520645323637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202269624 + ... + 202272197.

It is an arithmetic number, because the mean of its divisors is an integer number (36813305802).

Almost surely, 2^520645323627 is an apocalyptic number.

520645323627 is a deficient number, since it is larger than the sum of its proper divisors (362874015621).

520645323627 is a wasteful number, since it uses less digits than its factorization.

520645323627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404541851 (or 404541848 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

The spelling of 520645323627 in words is "five hundred twenty billion, six hundred forty-five million, three hundred twenty-three thousand, six hundred twenty-seven".