40445144011 has 2 divisors, whose sum is σ = 40445144012. Its totient is φ = 40445144010.

The previous prime is 40445143987. The next prime is 40445144039. The reversal of 40445144011 is 11044154404.

It is an a-pointer prime, because the next prime (40445144039) can be obtained adding 40445144011 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40445144011 - 2⁵ = 40445143979 is a prime.

It is not a weakly prime, because it can be changed into another prime (40445144911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222572005 + 20222572006.

It is an arithmetic number, because the mean of its divisors is an integer number (20222572006).

Almost surely, 2^40445144011 is an apocalyptic number.

40445144011 is a deficient number, since it is larger than the sum of its proper divisors (1).

40445144011 is an equidigital number, since it uses as much as digits as its factorization.

40445144011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 40445144011 its reverse (11044154404), we get a palindrome (51489298415).

The spelling of 40445144011 in words is "forty billion, four hundred forty-five million, one hundred forty-four thousand, eleven".