40840223386811 has 2 divisors, whose sum is σ = 40840223386812. Its totient is φ = 40840223386810.

The previous prime is 40840223386777. The next prime is 40840223386813. The reversal of 40840223386811 is 11868332204804.

40840223386811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40840223386811 - 2⁶ = 40840223386747 is a prime.

It is a super-4 number, since 4×40840223386811⁴ (a number of 56 digits) contains 4444 as substring.

Together with 40840223386813, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40840223386811.

It is not a weakly prime, because it can be changed into another prime (40840223386813) 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, 20420111693405 + 20420111693406.

It is an arithmetic number, because the mean of its divisors is an integer number (20420111693406).

Almost surely, 2^{40840223386811} is an apocalyptic number.

40840223386811 is a deficient number, since it is larger than the sum of its proper divisors (1).

40840223386811 is an equidigital number, since it uses as much as digits as its factorization.

40840223386811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1769472, while the sum is 50.

The spelling of 40840223386811 in words is "forty trillion, eight hundred forty billion, two hundred twenty-three million, three hundred eighty-six thousand, eight hundred eleven".