4444445555549 has 2 divisors, whose sum is σ = 4444445555550. Its totient is φ = 4444445555548.

The previous prime is 4444445555531. The next prime is 4444445555567. The reversal of 4444445555549 is 9455555444444.

It is a balanced prime because it is at equal distance from previous prime (4444445555531) and next prime (4444445555567).

It can be written as a sum of positive squares in only one way, i.e., 3679683062500 + 764762493049 = 1918250^2 + 874507^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444445555549 - 2²⁸ = 4444177120093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4444445555491 and 4444445555500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444445555449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222222777774 + 2222222777775.

It is an arithmetic number, because the mean of its divisors is an integer number (2222222777775).

Almost surely, 2^{4444445555549} is an apocalyptic number.

It is an amenable number.

4444445555549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444445555549 is an equidigital number, since it uses as much as digits as its factorization.

4444445555549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800000, while the sum is 62.

It can be divided in two parts, 4444445 and 555549, that added together give a palindrome (4999994).

The spelling of 4444445555549 in words is "four trillion, four hundred forty-four billion, four hundred forty-five million, five hundred fifty-five thousand, five hundred forty-nine".