517117918810712 has 8 divisors (see below), whose sum is σ = 969596097770100. Its totient is φ = 258558959405352.

The previous prime is 517117918810697. The next prime is 517117918810739. The reversal of 517117918810712 is 217018819711715.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32319869925662 + ... + 32319869925677.

Almost surely, 2^{517117918810712} is an apocalyptic number.

It is an amenable number.

517117918810712 is a deficient number, since it is larger than the sum of its proper divisors (452478178959388).

517117918810712 is a wasteful number, since it uses less digits than its factorization.

517117918810712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64639739851345 (or 64639739851341 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 59.

The spelling of 517117918810712 in words is "five hundred seventeen trillion, one hundred seventeen billion, nine hundred eighteen million, eight hundred ten thousand, seven hundred twelve".