518912468 has 6 divisors (see below), whose sum is σ = 908096826. Its totient is φ = 259456232.

The previous prime is 518912423. The next prime is 518912473. The reversal of 518912468 is 864219815.

It can be written as a sum of positive squares in only one way, i.e., 340476304 + 178436164 = 18452^2 + 13358^2 .

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, 64864055 + ... + 64864062.

It is an arithmetic number, because the mean of its divisors is an integer number (151349471).

Almost surely, 2^518912468 is an apocalyptic number.

It is an amenable number.

518912468 is a deficient number, since it is larger than the sum of its proper divisors (389184358).

518912468 is a wasteful number, since it uses less digits than its factorization.

518912468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129728121 (or 129728119 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The square root of 518912468 is about 22779.6503046030. The cubic root of 518912468 is about 803.5841619978.

The spelling of 518912468 in words is "five hundred eighteen million, nine hundred twelve thousand, four hundred sixty-eight".