44437404409 has 2 divisors, whose sum is σ = 44437404410. Its totient is φ = 44437404408.

The previous prime is 44437404397. The next prime is 44437404437. The reversal of 44437404409 is 90440473444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43682254009 + 755150400 = 209003^2 + 27480^2 .

It is a cyclic number.

It is not a de Polignac number, because 44437404409 - 2⁵ = 44437404377 is a prime.

It is not a weakly prime, because it can be changed into another prime (44437404499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22218702204 + 22218702205.

It is an arithmetic number, because the mean of its divisors is an integer number (22218702205).

Almost surely, 2^44437404409 is an apocalyptic number.

It is an amenable number.

44437404409 is a deficient number, since it is larger than the sum of its proper divisors (1).

44437404409 is an equidigital number, since it uses as much as digits as its factorization.

44437404409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 44437404409 in words is "forty-four billion, four hundred thirty-seven million, four hundred four thousand, four hundred nine".