518489734272 has 64 divisors (see below), whose sum is σ = 1378721800800. Its totient is φ = 172643753984.

The previous prime is 518489734267. The next prime is 518489734303. The reversal of 518489734272 is 272437984815.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369978 + ... + 1083449.

Almost surely, 2^518489734272 is an apocalyptic number.

It is an amenable number.

518489734272 is an abundant number, since it is smaller than the sum of its proper divisors (860232066528).

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

518489734272 is a wasteful number, since it uses less digits than its factorization.

518489734272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454373 (or 1454361 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The spelling of 518489734272 in words is "five hundred eighteen billion, four hundred eighty-nine million, seven hundred thirty-four thousand, two hundred seventy-two".