44505490817 has 2 divisors, whose sum is σ = 44505490818. Its totient is φ = 44505490816.

The previous prime is 44505490753. The next prime is 44505490849. The reversal of 44505490817 is 71809450544.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33013436416 + 11492054401 = 181696^2 + 107201^2 .

It is a cyclic number.

It is not a de Polignac number, because 44505490817 - 2⁶ = 44505490753 is a prime.

It is not a weakly prime, because it can be changed into another prime (44505490717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22252745408 + 22252745409.

It is an arithmetic number, because the mean of its divisors is an integer number (22252745409).

Almost surely, 2^44505490817 is an apocalyptic number.

It is an amenable number.

44505490817 is a deficient number, since it is larger than the sum of its proper divisors (1).

44505490817 is an equidigital number, since it uses as much as digits as its factorization.

44505490817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 44505490817 in words is "forty-four billion, five hundred five million, four hundred ninety thousand, eight hundred seventeen".