4518521100 has 216 divisors, whose sum is σ = 15081066000. Its totient is φ = 1128314880.

The previous prime is 4518521093. The next prime is 4518521113. The reversal of 4518521100 is 11258154.

It is a super-2 number, since 2×4518521100² = 40834065862290420000, which contains 22 as substring.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 1520416 + ... + 1523384.

It is an arithmetic number, because the mean of its divisors is an integer number (69819750).

Almost surely, 2^4518521100 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 4518521100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7540533000).

4518521100 is an abundant number, since it is smaller than the sum of its proper divisors (10562544900).

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

4518521100 is a wasteful number, since it uses less digits than its factorization.

4518521100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097 (or 3087 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 4518521100 is about 67219.9457006624. The cubic root of 4518521100 is about 1653.2255361162.

Adding to 4518521100 its reverse (11258154), we get a palindrome (4529779254).

The spelling of 4518521100 in words is "four billion, five hundred eighteen million, five hundred twenty-one thousand, one hundred".