517485419520 has 352 divisors, whose sum is σ = 1725708644352. Its totient is φ = 132234805248.

The previous prime is 517485419497. The next prime is 517485419533. The reversal of 517485419520 is 25914584715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34998049 + ... + 35012831.

It is an arithmetic number, because the mean of its divisors is an integer number (4902581376).

Almost surely, 2^517485419520 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 517485419520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862854322176).

517485419520 is an abundant number, since it is smaller than the sum of its proper divisors (1208223224832).

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

517485419520 is a wasteful number, since it uses less digits than its factorization.

517485419520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14907 (or 14889 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 51.

The spelling of 517485419520 in words is "five hundred seventeen billion, four hundred eighty-five million, four hundred nineteen thousand, five hundred twenty".