40227722731813 has 2 divisors, whose sum is σ = 40227722731814. Its totient is φ = 40227722731812.

The previous prime is 40227722731741. The next prime is 40227722731831. The reversal of 40227722731813 is 31813722772204.

It is a happy number.

40227722731813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (40227722731831) 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., 35226385373124 + 5001337358689 = 5935182^2 + 2236367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40227722731813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40227722731873) 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, 20113861365906 + 20113861365907.

It is an arithmetic number, because the mean of its divisors is an integer number (20113861365907).

Almost surely, 2^{40227722731813} is an apocalyptic number.

It is an amenable number.

40227722731813 is a deficient number, since it is larger than the sum of its proper divisors (1).

40227722731813 is an equidigital number, since it uses as much as digits as its factorization.

40227722731813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544, while the sum is 49.

The spelling of 40227722731813 in words is "forty trillion, two hundred twenty-seven billion, seven hundred twenty-two million, seven hundred thirty-one thousand, eight hundred thirteen".