40444001043503 has 2 divisors, whose sum is σ = 40444001043504. Its totient is φ = 40444001043502.

The previous prime is 40444001043461. The next prime is 40444001043539. The reversal of 40444001043503 is 30534010044404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40444001043503 - 2⁸ = 40444001043247 is a prime.

It is a super-2 number, since 2×40444001043503² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40444001043503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40444001043583) 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, 20222000521751 + 20222000521752.

It is an arithmetic number, because the mean of its divisors is an integer number (20222000521752).

Almost surely, 2^{40444001043503} is an apocalyptic number.

40444001043503 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444001043503 is an equidigital number, since it uses as much as digits as its factorization.

40444001043503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 40444001043503 its reverse (30534010044404), we get a palindrome (70978011087907).

Subtracting from 40444001043503 its reverse (30534010044404), we obtain a palindrome (9909990999099).

The spelling of 40444001043503 in words is "forty trillion, four hundred forty-four billion, one million, forty-three thousand, five hundred three".