4518906984 has 24 divisors (see below), whose sum is σ = 12238706610. Its totient is φ = 1506302304.

The previous prime is 4518906961. The next prime is 4518906989. The reversal of 4518906984 is 4896098154.

It can be written as a sum of positive squares in only one way, i.e., 3995504100 + 523402884 = 63210^2 + 22878^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4518906984.

It is not an unprimeable number, because it can be changed into a prime (4518906989) 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 5 ways as a sum of consecutive naturals, for example, 31381227 + ... + 31381370.

Almost surely, 2^4518906984 is an apocalyptic number.

It is an amenable number.

4518906984 is an abundant number, since it is smaller than the sum of its proper divisors (7719799626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4518906984 is a wasteful number, since it uses less digits than its factorization.

4518906984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62762609 (or 62762602 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 4518906984 is about 67222.8159481586. The cubic root of 4518906984 is about 1653.2725968771.

The spelling of 4518906984 in words is "four billion, five hundred eighteen million, nine hundred six thousand, nine hundred eighty-four".