518348869 has 4 divisors (see below), whose sum is σ = 518698944. Its totient is φ = 517998796.

The previous prime is 518348833. The next prime is 518348879. The reversal of 518348869 is 968843815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 518348869 - 2¹⁷ = 518217797 is a prime.

It is a super-2 number, since 2×518348869² = 537371099987158322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518348879) 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, 172807 + ... + 175780.

It is an arithmetic number, because the mean of its divisors is an integer number (129674736).

Almost surely, 2^518348869 is an apocalyptic number.

It is an amenable number.

518348869 is a deficient number, since it is larger than the sum of its proper divisors (350075).

518348869 is a wasteful number, since it uses less digits than its factorization.

518348869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350074.

The product of its digits is 1658880, while the sum is 52.

The square root of 518348869 is about 22767.2762753914. The cubic root of 518348869 is about 803.2931281375.

The spelling of 518348869 in words is "five hundred eighteen million, three hundred forty-eight thousand, eight hundred sixty-nine".