1440501440449 has 2 divisors, whose sum is σ = 1440501440450. Its totient is φ = 1440501440448.

The previous prime is 1440501440437. The next prime is 1440501440479. The reversal of 1440501440449 is 9440441050441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1303707240000 + 136794200449 = 1141800^2 + 369857^2 .

It is an emirp because it is prime and its reverse (9440441050441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1440501440449 - 2²³ = 1440493051841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440501440479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720250720224 + 720250720225.

It is an arithmetic number, because the mean of its divisors is an integer number (720250720225).

Almost surely, 2^{1440501440449} is an apocalyptic number.

It is an amenable number.

1440501440449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440501440449 is an equidigital number, since it uses as much as digits as its factorization.

1440501440449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 1440501440449 in words is "one trillion, four hundred forty billion, five hundred one million, four hundred forty thousand, four hundred forty-nine".