44581831409 has 2 divisors, whose sum is σ = 44581831410. Its totient is φ = 44581831408.

The previous prime is 44581831403. The next prime is 44581831453. The reversal of 44581831409 is 90413818544.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36368397025 + 8213434384 = 190705^2 + 90628^2 .

It is a cyclic number.

It is not a de Polignac number, because 44581831409 - 2¹² = 44581827313 is a prime.

It is not a weakly prime, because it can be changed into another prime (44581831403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22290915704 + 22290915705.

It is an arithmetic number, because the mean of its divisors is an integer number (22290915705).

Almost surely, 2^44581831409 is an apocalyptic number.

It is an amenable number.

44581831409 is a deficient number, since it is larger than the sum of its proper divisors (1).

44581831409 is an equidigital number, since it uses as much as digits as its factorization.

44581831409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 44581831409 in words is "forty-four billion, five hundred eighty-one million, eight hundred thirty-one thousand, four hundred nine".