517021016126044 has 12 divisors (see below), whose sum is σ = 913745063154168. Its totient is φ = 255950998082000.

The previous prime is 517021016126039. The next prime is 517021016126113. The reversal of 517021016126044 is 440621610120715.

It is a happy number.

It is a super-3 number, since 3×517021016126044³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 517021016125988 and 517021016126006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639877494802 + ... + 639877495609.

It is an arithmetic number, because the mean of its divisors is an integer number (76145421929514).

Almost surely, 2^{517021016126044} is an apocalyptic number.

It is an amenable number.

517021016126044 is a deficient number, since it is larger than the sum of its proper divisors (396724047028124).

517021016126044 is a wasteful number, since it uses less digits than its factorization.

517021016126044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279754990516 (or 1279754990514 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

Adding to 517021016126044 its reverse (440621610120715), we get a palindrome (957642626246759).

The spelling of 517021016126044 in words is "five hundred seventeen trillion, twenty-one billion, sixteen million, one hundred twenty-six thousand, forty-four".