517423780052 has 24 divisors (see below), whose sum is σ = 928660286400. Its totient is φ = 252119681856.

The previous prime is 517423779991. The next prime is 517423780061. The reversal of 517423780052 is 250087324715.

It is a junction number, because it is equal to n+sod(n) for n = 517423779985 and 517423780012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3350777 + ... + 3501792.

It is an arithmetic number, because the mean of its divisors is an integer number (38694178600).

Almost surely, 2^517423780052 is an apocalyptic number.

It is an amenable number.

517423780052 is a deficient number, since it is larger than the sum of its proper divisors (411236506348).

517423780052 is a wasteful number, since it uses less digits than its factorization.

517423780052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853055 (or 6853053 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 517423780052 in words is "five hundred seventeen billion, four hundred twenty-three million, seven hundred eighty thousand, fifty-two".