2271167405449 has 2 divisors, whose sum is σ = 2271167405450. Its totient is φ = 2271167405448.

The previous prime is 2271167405389. The next prime is 2271167405471. The reversal of 2271167405449 is 9445047611722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1522065038400 + 749102367049 = 1233720^2 + 865507^2 .

It is a cyclic number.

It is not a de Polignac number, because 2271167405449 - 2⁹ = 2271167404937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2271167405396 and 2271167405405.

It is not a weakly prime, because it can be changed into another prime (2271167405149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135583702724 + 1135583702725.

It is an arithmetic number, because the mean of its divisors is an integer number (1135583702725).

Almost surely, 2^{2271167405449} is an apocalyptic number.

It is an amenable number.

2271167405449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271167405449 is an equidigital number, since it uses as much as digits as its factorization.

2271167405449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 2271167405449 in words is "two trillion, two hundred seventy-one billion, one hundred sixty-seven million, four hundred five thousand, four hundred forty-nine".