518873268 has 12 divisors (see below), whose sum is σ = 1210704320. Its totient is φ = 172957752.

The previous prime is 518873263. The next prime is 518873309. The reversal of 518873268 is 862378815.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518873263) 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, 21619708 + ... + 21619731.

Almost surely, 2^518873268 is an apocalyptic number.

It is an amenable number.

518873268 is an abundant number, since it is smaller than the sum of its proper divisors (691831052).

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

518873268 is a wasteful number, since it uses less digits than its factorization.

518873268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43239446 (or 43239444 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 518873268 is about 22778.7898712816. The cubic root of 518873268 is about 803.5639265410.

It can be divided in two parts, 51887 and 3268, that added together give a palindrome (55155).

The spelling of 518873268 in words is "five hundred eighteen million, eight hundred seventy-three thousand, two hundred sixty-eight".