4547218604544 has 1280 divisors, whose sum is σ = 18276115968000. Its totient is φ = 1080209571840.

The previous prime is 4547218604527. The next prime is 4547218604623. The reversal of 4547218604544 is 4454068127454.

4547218604544 is a `hidden beast` number, since 4 + 5 + 4 + 7 + 2 + 186 + 0 + 454 + 4 = 666.

It is a super-2 number, since 2×4547218604544² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 586506972 + ... + 586514724.

It is an arithmetic number, because the mean of its divisors is an integer number (14278215600).

Almost surely, 2^{4547218604544} is an apocalyptic number.

4547218604544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4547218604544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9138057984000).

4547218604544 is an abundant number, since it is smaller than the sum of its proper divisors (13728897363456).

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

4547218604544 is a wasteful number, since it uses less digits than its factorization.

4547218604544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846 (or 7824 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 54.

The spelling of 4547218604544 in words is "four trillion, five hundred forty-seven billion, two hundred eighteen million, six hundred four thousand, five hundred forty-four".