2745232218 has 48 divisors (see below), whose sum is σ = 6167206656. Its totient is φ = 881616960.

The previous prime is 2745232163. The next prime is 2745232261. The reversal of 2745232218 is 8122325472.

2745232218 is a `hidden beast` number, since 274 + 52 + 322 + 18 = 666.

2745232218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115830 + ... + 137502.

It is an arithmetic number, because the mean of its divisors is an integer number (128483472).

Almost surely, 2^2745232218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2745232218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3083603328).

2745232218 is an abundant number, since it is smaller than the sum of its proper divisors (3421974438).

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

2745232218 is a wasteful number, since it uses less digits than its factorization.

2745232218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21939 (or 21936 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2745232218 is about 52394.9636701849. The cubic root of 2745232218 is about 1400.2095295238.

The spelling of 2745232218 in words is "two billion, seven hundred forty-five million, two hundred thirty-two thousand, two hundred eighteen".