2545218464 has 48 divisors (see below), whose sum is σ = 5110711200. Its totient is φ = 1247387904.

The previous prime is 2545218421. The next prime is 2545218491. The reversal of 2545218464 is 4648125452.

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 7 ways as a sum of consecutive naturals, for example, 713774 + ... + 717330.

It is an arithmetic number, because the mean of its divisors is an integer number (106473150).

Almost surely, 2^2545218464 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 2545218464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2555355600).

2545218464 is an abundant number, since it is smaller than the sum of its proper divisors (2565492736).

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

2545218464 is a wasteful number, since it uses less digits than its factorization.

2545218464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005 (or 3997 counting only the distinct ones).

The product of its digits is 307200, while the sum is 41.

The square root of 2545218464 is about 50450.1582158074. The cubic root of 2545218464 is about 1365.3427494247.

The spelling of 2545218464 in words is "two billion, five hundred forty-five million, two hundred eighteen thousand, four hundred sixty-four".