44581366481 has 2 divisors, whose sum is σ = 44581366482. Its totient is φ = 44581366480.

The previous prime is 44581366439. The next prime is 44581366517. The reversal of 44581366481 is 18466318544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40327065856 + 4254300625 = 200816^2 + 65225^2 .

It is a cyclic number.

It is not a de Polignac number, because 44581366481 - 2²² = 44577172177 is a prime.

It is a super-2 number, since 2×44581366481² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (44581363481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22290683240 + 22290683241.

It is an arithmetic number, because the mean of its divisors is an integer number (22290683241).

Almost surely, 2^44581366481 is an apocalyptic number.

It is an amenable number.

44581366481 is a deficient number, since it is larger than the sum of its proper divisors (1).

44581366481 is an equidigital number, since it uses as much as digits as its factorization.

44581366481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2211840, while the sum is 50.

The spelling of 44581366481 in words is "forty-four billion, five hundred eighty-one million, three hundred sixty-six thousand, four hundred eighty-one".