1444359223487 has 2 divisors, whose sum is σ = 1444359223488. Its totient is φ = 1444359223486.

The previous prime is 1444359223397. The next prime is 1444359223499. The reversal of 1444359223487 is 7843229534441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1444359223487 - 2²⁶ = 1444292114623 is a prime.

It is a super-2 number, since 2×1444359223487² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444359222487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722179611743 + 722179611744.

It is an arithmetic number, because the mean of its divisors is an integer number (722179611744).

Almost surely, 2^{1444359223487} is an apocalyptic number.

1444359223487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444359223487 is an equidigital number, since it uses as much as digits as its factorization.

1444359223487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 56.

The spelling of 1444359223487 in words is "one trillion, four hundred forty-four billion, three hundred fifty-nine million, two hundred twenty-three thousand, four hundred eighty-seven".