4518897648 has 40 divisors (see below), whose sum is σ = 11679194448. Its totient is φ = 1505605632.

The previous prime is 4518897631. The next prime is 4518897667. The reversal of 4518897648 is 8467988154.

It is a junction number, because it is equal to n+sod(n) for n = 4518897591 and 4518897600.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 89536 + ... + 130592.

Almost surely, 2^4518897648 is an apocalyptic number.

4518897648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4518897648 is an abundant number, since it is smaller than the sum of its proper divisors (7160296800).

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

4518897648 is a wasteful number, since it uses less digits than its factorization.

4518897648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43361 (or 43355 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The square root of 4518897648 is about 67222.7465074137. The cubic root of 4518897648 is about 1653.2714583301.

The spelling of 4518897648 in words is "four billion, five hundred eighteen million, eight hundred ninety-seven thousand, six hundred forty-eight".