2218706847 has 24 divisors (see below), whose sum is σ = 3664995360. Its totient is φ = 1267012800.

The previous prime is 2218706843. The next prime is 2218706911. The reversal of 2218706847 is 7486078122.

It is not a de Polignac number, because 2218706847 - 2² = 2218706843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218706843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94597 + ... + 115697.

It is an arithmetic number, because the mean of its divisors is an integer number (152708140).

Almost surely, 2^2218706847 is an apocalyptic number.

2218706847 is a deficient number, since it is larger than the sum of its proper divisors (1446288513).

2218706847 is a wasteful number, since it uses less digits than its factorization.

2218706847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22783 (or 22780 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 2218706847 is about 47103.1511366278. The cubic root of 2218706847 is about 1304.2674057897.

The spelling of 2218706847 in words is "two billion, two hundred eighteen million, seven hundred six thousand, eight hundred forty-seven".