518915089 has 32 divisors (see below), whose sum is σ = 696729600. Its totient is φ = 374058240.

The previous prime is 518915083. The next prime is 518915119. The reversal of 518915089 is 980519815.

It is a cyclic number.

It is not a de Polignac number, because 518915089 - 2³ = 518915081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (518915081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73872 + ... + 80590.

It is an arithmetic number, because the mean of its divisors is an integer number (21772800).

Almost surely, 2^518915089 is an apocalyptic number.

518915089 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

518915089 is a deficient number, since it is larger than the sum of its proper divisors (177814511).

518915089 is a wasteful number, since it uses less digits than its factorization.

518915089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6813.

The product of its (nonzero) digits is 129600, while the sum is 46.

The square root of 518915089 is about 22779.7078339473. The cubic root of 518915089 is about 803.5855149495.

The spelling of 518915089 in words is "five hundred eighteen million, nine hundred fifteen thousand, eighty-nine".