518272887 has 12 divisors (see below), whose sum is σ = 759563000. Its totient is φ = 314104560.

The previous prime is 518272879. The next prime is 518272889. The reversal of 518272887 is 788272815.

It is not a de Polignac number, because 518272887 - 2³ = 518272879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518272889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 713512 + ... + 714237.

Almost surely, 2^518272887 is an apocalyptic number.

518272887 is a deficient number, since it is larger than the sum of its proper divisors (241290113).

518272887 is a wasteful number, since it uses less digits than its factorization.

518272887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427774 (or 1427763 counting only the distinct ones).

The product of its digits is 501760, while the sum is 48.

The square root of 518272887 is about 22765.6075473509. The cubic root of 518272887 is about 803.2538760657.

It can be divided in two parts, 5182728 and 87, that added together give a palindrome (5182815).

The spelling of 518272887 in words is "five hundred eighteen million, two hundred seventy-two thousand, eight hundred eighty-seven".