84448440449 has 2 divisors, whose sum is σ = 84448440450. Its totient is φ = 84448440448.

The previous prime is 84448440437. The next prime is 84448440499. The reversal of 84448440449 is 94404484448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66238287424 + 18210153025 = 257368^2 + 134945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84448440449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84448440449.

It is not a weakly prime, because it can be changed into another prime (84448440499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42224220224 + 42224220225.

It is an arithmetic number, because the mean of its divisors is an integer number (42224220225).

Almost surely, 2^84448440449 is an apocalyptic number.

It is an amenable number.

84448440449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84448440449 is an equidigital number, since it uses as much as digits as its factorization.

84448440449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9437184, while the sum is 53.

The spelling of 84448440449 in words is "eighty-four billion, four hundred forty-eight million, four hundred forty thousand, four hundred forty-nine".