4440043441381 has 2 divisors, whose sum is σ = 4440043441382. Its totient is φ = 4440043441380.

The previous prime is 4440043441357. The next prime is 4440043441403. The reversal of 4440043441381 is 1831443400444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3048742984225 + 1391300457156 = 1746065^2 + 1179534^2 .

It is a cyclic number.

It is not a de Polignac number, because 4440043441381 - 2⁵ = 4440043441349 is a prime.

It is a super-2 number, since 2×4440043441381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4440043441781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2220021720690 + 2220021720691.

It is an arithmetic number, because the mean of its divisors is an integer number (2220021720691).

Almost surely, 2^{4440043441381} is an apocalyptic number.

It is an amenable number.

4440043441381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4440043441381 is an equidigital number, since it uses as much as digits as its factorization.

4440043441381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 4440043441381 in words is "four trillion, four hundred forty billion, forty-three million, four hundred forty-one thousand, three hundred eighty-one".