44208450721 has 2 divisors, whose sum is σ = 44208450722. Its totient is φ = 44208450720.

The previous prime is 44208450709. The next prime is 44208450731. The reversal of 44208450721 is 12705480244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34275338496 + 9933112225 = 185136^2 + 99665^2 .

It is a cyclic number.

It is not a de Polignac number, because 44208450721 - 2¹¹ = 44208448673 is a prime.

It is not a weakly prime, because it can be changed into another prime (44208450701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22104225360 + 22104225361.

It is an arithmetic number, because the mean of its divisors is an integer number (22104225361).

Almost surely, 2^44208450721 is an apocalyptic number.

It is an amenable number.

44208450721 is a deficient number, since it is larger than the sum of its proper divisors (1).

44208450721 is an equidigital number, since it uses as much as digits as its factorization.

44208450721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 37.

The spelling of 44208450721 in words is "forty-four billion, two hundred eight million, four hundred fifty thousand, seven hundred twenty-one".