7444400044481 has 2 divisors, whose sum is σ = 7444400044482. Its totient is φ = 7444400044480.

The previous prime is 7444400044387. The next prime is 7444400044493. The reversal of 7444400044481 is 1844400044447.

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., 5650086214081 + 1794313830400 = 2376991^2 + 1339520^2 .

It is a cyclic number.

It is not a de Polignac number, because 7444400044481 - 2³⁸ = 7169522137537 is a prime.

It is a super-2 number, since 2×7444400044481² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7443400044481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3722200022240 + 3722200022241.

It is an arithmetic number, because the mean of its divisors is an integer number (3722200022241).

Almost surely, 2^{7444400044481} is an apocalyptic number.

It is an amenable number.

7444400044481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7444400044481 is an equidigital number, since it uses as much as digits as its factorization.

7444400044481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 917504, while the sum is 44.

The spelling of 7444400044481 in words is "seven trillion, four hundred forty-four billion, four hundred million, forty-four thousand, four hundred eighty-one".