4220444413949 has 2 divisors, whose sum is σ = 4220444413950. Its totient is φ = 4220444413948.

The previous prime is 4220444413907. The next prime is 4220444413951. The reversal of 4220444413949 is 9493144440224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3771531013849 + 448913400100 = 1942043^2 + 670010^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220444413949 - 2⁸ = 4220444413693 is a prime.

Together with 4220444413951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4220444413897 and 4220444413906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4220444413349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110222206974 + 2110222206975.

It is an arithmetic number, because the mean of its divisors is an integer number (2110222206975).

Almost surely, 2^{4220444413949} is an apocalyptic number.

It is an amenable number.

4220444413949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220444413949 is an equidigital number, since it uses as much as digits as its factorization.

4220444413949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 50.

The spelling of 4220444413949 in words is "four trillion, two hundred twenty billion, four hundred forty-four million, four hundred thirteen thousand, nine hundred forty-nine".