44218747609 has 2 divisors, whose sum is σ = 44218747610. Its totient is φ = 44218747608.

The previous prime is 44218747553. The next prime is 44218747649. The reversal of 44218747609 is 90674781244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29365963225 + 14852784384 = 171365^2 + 121872^2 .

It is a cyclic number.

It is not a de Polignac number, because 44218747609 - 2¹⁹ = 44218223321 is a prime.

It is not a weakly prime, because it can be changed into another prime (44218747649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22109373804 + 22109373805.

It is an arithmetic number, because the mean of its divisors is an integer number (22109373805).

Almost surely, 2^44218747609 is an apocalyptic number.

It is an amenable number.

44218747609 is a deficient number, since it is larger than the sum of its proper divisors (1).

44218747609 is an equidigital number, since it uses as much as digits as its factorization.

44218747609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 44218747609 in words is "forty-four billion, two hundred eighteen million, seven hundred forty-seven thousand, six hundred nine".