518238228936768 has 28 divisors (see below), whose sum is σ = 1371171980729040. Its totient is φ = 172746076312192.

The previous prime is 518238228936761. The next prime is 518238228936821. The reversal of 518238228936768 is 867639822832815.

It is a super-3 number, since 3×518238228936768³ (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 = 518238228936693 and 518238228936702.

It is not an unprimeable number, because it can be changed into a prime (518238228936761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349578720998 + ... + 1349578721381.

It is an arithmetic number, because the mean of its divisors is an integer number (48970427883180).

Almost surely, 2^{518238228936768} is an apocalyptic number.

It is an amenable number.

518238228936768 is an abundant number, since it is smaller than the sum of its proper divisors (852933751792272).

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

518238228936768 is a wasteful number, since it uses less digits than its factorization.

518238228936768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699157442394 (or 2699157442384 counting only the distinct ones).

The product of its digits is 3344302080, while the sum is 78.

The spelling of 518238228936768 in words is "five hundred eighteen trillion, two hundred thirty-eight billion, two hundred twenty-eight million, nine hundred thirty-six thousand, seven hundred sixty-eight".