2218936471 has 2 divisors, whose sum is σ = 2218936472. Its totient is φ = 2218936470.

The previous prime is 2218936469. The next prime is 2218936481. The reversal of 2218936471 is 1746398122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2218936471 - 2¹ = 2218936469 is a prime.

It is a super-3 number, since 3×2218936471³ (a number of 29 digits) contains 333 as substring.

Together with 2218936469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2218936481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109468235 + 1109468236.

It is an arithmetic number, because the mean of its divisors is an integer number (1109468236).

Almost surely, 2^2218936471 is an apocalyptic number.

2218936471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218936471 is an equidigital number, since it uses as much as digits as its factorization.

2218936471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 2218936471 is about 47105.5885325722. The cubic root of 2218936471 is about 1304.3123990806.

The spelling of 2218936471 in words is "two billion, two hundred eighteen million, nine hundred thirty-six thousand, four hundred seventy-one".