40840223386813 has 2 divisors, whose sum is σ = 40840223386814. Its totient is φ = 40840223386812.

The previous prime is 40840223386811. The next prime is 40840223386883. The reversal of 40840223386813 is 31868332204804.

40840223386813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27134545700889 + 13705677685924 = 5209083^2 + 3702118^2 .

It is a cyclic number.

It is not a de Polignac number, because 40840223386813 - 2¹ = 40840223386811 is a prime.

It is a super-3 number, since 3×40840223386813³ (a number of 42 digits) contains 333 as substring.

Together with 40840223386811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40840223386811) 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, 20420111693406 + 20420111693407.

It is an arithmetic number, because the mean of its divisors is an integer number (20420111693407).

Almost surely, 2^{40840223386813} is an apocalyptic number.

It is an amenable number.

40840223386813 is a deficient number, since it is larger than the sum of its proper divisors (1).

40840223386813 is an equidigital number, since it uses as much as digits as its factorization.

40840223386813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 40840223386813 in words is "forty trillion, eight hundred forty billion, two hundred twenty-three million, three hundred eighty-six thousand, eight hundred thirteen".