40444200242213 has 2 divisors, whose sum is σ = 40444200242214. Its totient is φ = 40444200242212.

The previous prime is 40444200242191. The next prime is 40444200242231. The reversal of 40444200242213 is 31224200244404.

Together with next prime (40444200242231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40420692606529 + 23507635684 = 6357727^2 + 153322^2 .

It is a cyclic number.

It is not a de Polignac number, because 40444200242213 - 2²² = 40444196047909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40444200242213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40444200242293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222100121106 + 20222100121107.

It is an arithmetic number, because the mean of its divisors is an integer number (20222100121107).

Almost surely, 2^{40444200242213} is an apocalyptic number.

It is an amenable number.

40444200242213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444200242213 is an equidigital number, since it uses as much as digits as its factorization.

40444200242213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 40444200242213 its reverse (31224200244404), we get a palindrome (71668400486617).

The spelling of 40444200242213 in words is "forty trillion, four hundred forty-four billion, two hundred million, two hundred forty-two thousand, two hundred thirteen".