4518478034820 has 288 divisors, whose sum is σ = 13905148787712. Its totient is φ = 1187592274944.

The previous prime is 4518478034773. The next prime is 4518478034831. The reversal of 4518478034820 is 284308748154.

4518478034820 is a `hidden beast` number, since 4 + 5 + 1 + 84 + 7 + 80 + 3 + 482 + 0 = 666.

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 95 ways as a sum of consecutive naturals, for example, 1917045082 + ... + 1917047438.

It is an arithmetic number, because the mean of its divisors is an integer number (48281766624).

Almost surely, 2^{4518478034820} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4518478034820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6952574393856).

4518478034820 is an abundant number, since it is smaller than the sum of its proper divisors (9386670752892).

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

4518478034820 is a wasteful number, since it uses less digits than its factorization.

4518478034820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051 (or 3046 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 4518478034820 in words is "four trillion, five hundred eighteen billion, four hundred seventy-eight million, thirty-four thousand, eight hundred twenty".