40444324553 has 2 divisors, whose sum is σ = 40444324554. Its totient is φ = 40444324552.

The previous prime is 40444324537. The next prime is 40444324603. The reversal of 40444324553 is 35542344404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21536149504 + 18908175049 = 146752^2 + 137507^2 .

It is a cyclic number.

It is not a de Polignac number, because 40444324553 - 2⁴ = 40444324537 is a prime.

It is not a weakly prime, because it can be changed into another prime (40444324523) 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, 20222162276 + 20222162277.

It is an arithmetic number, because the mean of its divisors is an integer number (20222162277).

Almost surely, 2^40444324553 is an apocalyptic number.

It is an amenable number.

40444324553 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444324553 is an equidigital number, since it uses as much as digits as its factorization.

40444324553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 40444324553 its reverse (35542344404), we get a palindrome (75986668957).

The spelling of 40444324553 in words is "forty billion, four hundred forty-four million, three hundred twenty-four thousand, five hundred fifty-three".