4549500018 has 96 divisors (see below), whose sum is σ = 11564467200. Its totient is φ = 1265550048.

The previous prime is 4549500013. The next prime is 4549500037. The reversal of 4549500018 is 8100059454.

It is not an unprimeable number, because it can be changed into a prime (4549500013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1943893 + ... + 1946231.

It is an arithmetic number, because the mean of its divisors is an integer number (120463200).

Almost surely, 2^4549500018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4549500018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5782233600).

4549500018 is an abundant number, since it is smaller than the sum of its proper divisors (7014967182).

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

4549500018 is a wasteful number, since it uses less digits than its factorization.

4549500018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 4549500018 is about 67449.9816011836. The cubic root of 4549500018 is about 1656.9950982907.

The spelling of 4549500018 in words is "four billion, five hundred forty-nine million, five hundred thousand, eighteen".