518448477 has 8 divisors (see below), whose sum is σ = 709947616. Its totient is φ = 336290832.

The previous prime is 518448419. The next prime is 518448509. The reversal of 518448477 is 774844815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 518448477 - 2¹¹ = 518446429 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 (518440477) 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 7 ways as a sum of consecutive naturals, for example, 2335243 + ... + 2335464.

It is an arithmetic number, because the mean of its divisors is an integer number (88743452).

Almost surely, 2^518448477 is an apocalyptic number.

It is an amenable number.

518448477 is a deficient number, since it is larger than the sum of its proper divisors (191499139).

518448477 is a wasteful number, since it uses less digits than its factorization.

518448477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670747.

The product of its digits is 1003520, while the sum is 48.

The square root of 518448477 is about 22769.4636959240. The cubic root of 518448477 is about 803.3445795196.

The spelling of 518448477 in words is "five hundred eighteen million, four hundred forty-eight thousand, four hundred seventy-seven".