520289713647 has 24 divisors (see below), whose sum is σ = 820597986000. Its totient is φ = 315039588480.

The previous prime is 520289713639. The next prime is 520289713649. The reversal of 520289713647 is 746317982025.

It is a happy number.

520289713647 is a `hidden beast` number, since 5 + 202 + 8 + 9 + 71 + 364 + 7 = 666.

It is not a de Polignac number, because 520289713647 - 2³ = 520289713639 is a prime.

It is a super-2 number, since 2×520289713647² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520289713593 and 520289713602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520289713649) 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, 2286772 + ... + 2503977.

It is an arithmetic number, because the mean of its divisors is an integer number (34191582750).

It is a 1-persistent number, because it is pandigital, but 2⋅520289713647 = 1040579427294 is not.

Almost surely, 2^520289713647 is an apocalyptic number.

520289713647 is a deficient number, since it is larger than the sum of its proper divisors (300308272353).

520289713647 is a wasteful number, since it uses less digits than its factorization.

520289713647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791863 (or 4791860 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 520289713647 in words is "five hundred twenty billion, two hundred eighty-nine million, seven hundred thirteen thousand, six hundred forty-seven".