44074418621609 has 2 divisors, whose sum is σ = 44074418621610. Its totient is φ = 44074418621608.

The previous prime is 44074418621603. The next prime is 44074418621743. The reversal of 44074418621609 is 90612681447044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26809063996009 + 17265354625600 = 5177747^2 + 4155160^2 .

It is a cyclic number.

It is not a de Polignac number, because 44074418621609 - 2²⁰ = 44074417573033 is a prime.

It is not a weakly prime, because it can be changed into another prime (44074418621603) 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, 22037209310804 + 22037209310805.

It is an arithmetic number, because the mean of its divisors is an integer number (22037209310805).

Almost surely, 2^{44074418621609} is an apocalyptic number.

It is an amenable number.

44074418621609 is a deficient number, since it is larger than the sum of its proper divisors (1).

44074418621609 is an equidigital number, since it uses as much as digits as its factorization.

44074418621609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 44074418621609 in words is "forty-four trillion, seventy-four billion, four hundred eighteen million, six hundred twenty-one thousand, six hundred nine".