2818263449 has 2 divisors, whose sum is σ = 2818263450. Its totient is φ = 2818263448.

The previous prime is 2818263419. The next prime is 2818263463. The reversal of 2818263449 is 9443628182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2495701849 + 322561600 = 49957^2 + 17960^2 .

It is a cyclic number.

It is not a de Polignac number, because 2818263449 - 2¹⁶ = 2818197913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2818263419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409131724 + 1409131725.

It is an arithmetic number, because the mean of its divisors is an integer number (1409131725).

Almost surely, 2^2818263449 is an apocalyptic number.

It is an amenable number.

2818263449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2818263449 is an equidigital number, since it uses as much as digits as its factorization.

2818263449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 47.

The square root of 2818263449 is about 53087.3190978787. The cubic root of 2818263449 is about 1412.5175833455.

The spelling of 2818263449 in words is "two billion, eight hundred eighteen million, two hundred sixty-three thousand, four hundred forty-nine".