8449944499453 has 2 divisors, whose sum is σ = 8449944499454. Its totient is φ = 8449944499452.

The previous prime is 8449944499429. The next prime is 8449944499483. The reversal of 8449944499453 is 3549944499448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8416711938649 + 33232560804 = 2901157^2 + 182298^2 .

It is a cyclic number.

It is not a de Polignac number, because 8449944499453 - 2⁵ = 8449944499421 is a prime.

It is a super-3 number, since 3×8449944499453³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8449944499453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8449944499483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4224972249726 + 4224972249727.

It is an arithmetic number, because the mean of its divisors is an integer number (4224972249727).

Almost surely, 2^{8449944499453} is an apocalyptic number.

It is an amenable number.

8449944499453 is a deficient number, since it is larger than the sum of its proper divisors (1).

8449944499453 is an equidigital number, since it uses as much as digits as its factorization.

8449944499453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3224862720, while the sum is 76.

The spelling of 8449944499453 in words is "eight trillion, four hundred forty-nine billion, nine hundred forty-four million, four hundred ninety-nine thousand, four hundred fifty-three".