520930851672 has 256 divisors, whose sum is σ = 1717494865920. Its totient is φ = 127650124800.

The previous prime is 520930851653. The next prime is 520930851739. The reversal of 520930851672 is 276158039025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3018847 + ... + 3186737.

It is an arithmetic number, because the mean of its divisors is an integer number (6708964320).

Almost surely, 2^520930851672 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 520930851672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858747432960).

520930851672 is an abundant number, since it is smaller than the sum of its proper divisors (1196564014248).

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

520930851672 is a wasteful number, since it uses less digits than its factorization.

520930851672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168014 (or 168010 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 520930851672 in words is "five hundred twenty billion, nine hundred thirty million, eight hundred fifty-one thousand, six hundred seventy-two".