4418466458891 has 2 divisors, whose sum is σ = 4418466458892. Its totient is φ = 4418466458890.

The previous prime is 4418466458869. The next prime is 4418466458893. The reversal of 4418466458891 is 1988546648144.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4418466458891 is a prime.

Together with 4418466458893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4418466458893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2209233229445 + 2209233229446.

It is an arithmetic number, because the mean of its divisors is an integer number (2209233229446).

Almost surely, 2^{4418466458891} is an apocalyptic number.

4418466458891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4418466458891 is an equidigital number, since it uses as much as digits as its factorization.

4418466458891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 212336640, while the sum is 68.

The spelling of 4418466458891 in words is "four trillion, four hundred eighteen billion, four hundred sixty-six million, four hundred fifty-eight thousand, eight hundred ninety-one".