44544805609 has 2 divisors, whose sum is σ = 44544805610. Its totient is φ = 44544805608.

The previous prime is 44544805567. The next prime is 44544805619. The reversal of 44544805609 is 90650844544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43127659584 + 1417146025 = 207672^2 + 37645^2 .

It is a cyclic number.

It is not a de Polignac number, because 44544805609 - 2²⁵ = 44511251177 is a prime.

It is not a weakly prime, because it can be changed into another prime (44544805619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22272402804 + 22272402805.

It is an arithmetic number, because the mean of its divisors is an integer number (22272402805).

Almost surely, 2^44544805609 is an apocalyptic number.

It is an amenable number.

44544805609 is a deficient number, since it is larger than the sum of its proper divisors (1).

44544805609 is an equidigital number, since it uses as much as digits as its factorization.

44544805609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 44544805609 in words is "forty-four billion, five hundred forty-four million, eight hundred five thousand, six hundred nine".