43488888449 has 2 divisors, whose sum is σ = 43488888450. Its totient is φ = 43488888448.

The previous prime is 43488888437. The next prime is 43488888467. The reversal of 43488888449 is 94488888434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37788638449 + 5700250000 = 194393^2 + 75500^2 .

It is a cyclic number.

It is not a de Polignac number, because 43488888449 - 2⁴ = 43488888433 is a prime.

It is not a weakly prime, because it can be changed into another prime (43488888409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21744444224 + 21744444225.

It is an arithmetic number, because the mean of its divisors is an integer number (21744444225).

Almost surely, 2^43488888449 is an apocalyptic number.

It is an amenable number.

43488888449 is a deficient number, since it is larger than the sum of its proper divisors (1).

43488888449 is an equidigital number, since it uses as much as digits as its factorization.

43488888449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226492416, while the sum is 68.

The spelling of 43488888449 in words is "forty-three billion, four hundred eighty-eight million, eight hundred eighty-eight thousand, four hundred forty-nine".