44121535009 has 2 divisors, whose sum is σ = 44121535010. Its totient is φ = 44121535008.

The previous prime is 44121534979. The next prime is 44121535043. The reversal of 44121535009 is 90053512144.

It is an a-pointer prime, because the next prime (44121535043) can be obtained adding 44121535009 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38777486400 + 5344048609 = 196920^2 + 73103^2 .

It is a cyclic number.

It is not a de Polignac number, because 44121535009 - 2²⁵ = 44087980577 is a prime.

It is not a weakly prime, because it can be changed into another prime (44121535079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22060767504 + 22060767505.

It is an arithmetic number, because the mean of its divisors is an integer number (22060767505).

Almost surely, 2^44121535009 is an apocalyptic number.

It is an amenable number.

44121535009 is a deficient number, since it is larger than the sum of its proper divisors (1).

44121535009 is an equidigital number, since it uses as much as digits as its factorization.

44121535009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 44121535009 in words is "forty-four billion, one hundred twenty-one million, five hundred thirty-five thousand, nine".