44109660509 has 2 divisors, whose sum is σ = 44109660510. Its totient is φ = 44109660508.

The previous prime is 44109660503. The next prime is 44109660557. The reversal of 44109660509 is 90506690144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39689405284 + 4420255225 = 199222^2 + 66485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44109660509 is a prime.

It is a super-3 number, since 3×44109660509³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44109660509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44109660503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22054830254 + 22054830255.

It is an arithmetic number, because the mean of its divisors is an integer number (22054830255).

Almost surely, 2^44109660509 is an apocalyptic number.

It is an amenable number.

44109660509 is a deficient number, since it is larger than the sum of its proper divisors (1).

44109660509 is an equidigital number, since it uses as much as digits as its factorization.

44109660509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 44109660509 in words is "forty-four billion, one hundred nine million, six hundred sixty thousand, five hundred nine".