518461849 has 4 divisors (see below), whose sum is σ = 518509264. Its totient is φ = 518414436.

The previous prime is 518461817. The next prime is 518461877. The reversal of 518461849 is 948164815.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 518461849 - 2⁵ = 518461817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518461799 and 518461808.

It is not an unprimeable number, because it can be changed into a prime (518461049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1954 + ... + 32260.

It is an arithmetic number, because the mean of its divisors is an integer number (129627316).

Almost surely, 2^518461849 is an apocalyptic number.

It is an amenable number.

518461849 is a deficient number, since it is larger than the sum of its proper divisors (47415).

518461849 is a wasteful number, since it uses less digits than its factorization.

518461849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47414.

The product of its digits is 276480, while the sum is 46.

The square root of 518461849 is about 22769.7573329186. The cubic root of 518461849 is about 803.3514861727.

The spelling of 518461849 in words is "five hundred eighteen million, four hundred sixty-one thousand, eight hundred forty-nine".