517904025368 has 16 divisors (see below), whose sum is σ = 971077745880. Its totient is φ = 258949959808.

The previous prime is 517904025341. The next prime is 517904025391. The reversal of 517904025368 is 863520409715.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 1641296 + ... + 1931232.

It is a 1-persistent number, because it is pandigital, but 2⋅517904025368 = 1035808050736 is not.

Almost surely, 2^517904025368 is an apocalyptic number.

It is an amenable number.

517904025368 is a deficient number, since it is larger than the sum of its proper divisors (453173720512).

517904025368 is a wasteful number, since it uses less digits than its factorization.

517904025368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513226 (or 513222 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 517904025368 in words is "five hundred seventeen billion, nine hundred four million, twenty-five thousand, three hundred sixty-eight".