40508218271 has 2 divisors, whose sum is σ = 40508218272. Its totient is φ = 40508218270.

The previous prime is 40508218259. The next prime is 40508218279. The reversal of 40508218271 is 17281280504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40508218271 - 2¹⁰ = 40508217247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40508218279) 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, 20254109135 + 20254109136.

It is an arithmetic number, because the mean of its divisors is an integer number (20254109136).

Almost surely, 2^40508218271 is an apocalyptic number.

40508218271 is a deficient number, since it is larger than the sum of its proper divisors (1).

40508218271 is an equidigital number, since it uses as much as digits as its factorization.

40508218271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 38.

Adding to 40508218271 its reverse (17281280504), we get a palindrome (57789498775).

The spelling of 40508218271 in words is "forty billion, five hundred eight million, two hundred eighteen thousand, two hundred seventy-one".