520009825873720 has 512 divisors, whose sum is σ = 1519648078233600. Its totient is φ = 155519135557632.

The previous prime is 520009825873711. The next prime is 520009825873847. The reversal of 520009825873720 is 27378528900025.

It is a super-2 number, since 2×520009825873720² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 101822951407 + ... + 101822956513.

It is an arithmetic number, because the mean of its divisors is an integer number (2968062652800).

Almost surely, 2^{520009825873720} 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 520009825873720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759824039116800).

520009825873720 is an abundant number, since it is smaller than the sum of its proper divisors (999638252359880).

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

520009825873720 is a wasteful number, since it uses less digits than its factorization.

520009825873720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587 (or 8583 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 520009825873720 in words is "five hundred twenty trillion, nine billion, eight hundred twenty-five million, eight hundred seventy-three thousand, seven hundred twenty".