40836643927 has 2 divisors, whose sum is σ = 40836643928. Its totient is φ = 40836643926.

The previous prime is 40836643829. The next prime is 40836643937. The reversal of 40836643927 is 72934663804.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40836643927 - 2²⁷ = 40702426199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40836643937) 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, 20418321963 + 20418321964.

It is an arithmetic number, because the mean of its divisors is an integer number (20418321964).

Almost surely, 2^40836643927 is an apocalyptic number.

40836643927 is a deficient number, since it is larger than the sum of its proper divisors (1).

40836643927 is an equidigital number, since it uses as much as digits as its factorization.

40836643927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 40836643927 in words is "forty billion, eight hundred thirty-six million, six hundred forty-three thousand, nine hundred twenty-seven".