2218758648 has 32 divisors (see below), whose sum is σ = 5550716160. Its totient is φ = 739076960.

The previous prime is 2218758631. The next prime is 2218758679. The reversal of 2218758648 is 8468578122.

2218758648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2218758648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4603 + ... + 66773.

It is an arithmetic number, because the mean of its divisors is an integer number (173459880).

Almost surely, 2^2218758648 is an apocalyptic number.

It is an amenable number.

2218758648 is an abundant number, since it is smaller than the sum of its proper divisors (3331957512).

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

2218758648 is a wasteful number, since it uses less digits than its factorization.

2218758648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63667 (or 63663 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 51.

The square root of 2218758648 is about 47103.7010010891. The cubic root of 2218758648 is about 1304.2775561212.

The spelling of 2218758648 in words is "two billion, two hundred eighteen million, seven hundred fifty-eight thousand, six hundred forty-eight".