40664727683 has 2 divisors, whose sum is σ = 40664727684. Its totient is φ = 40664727682.

The previous prime is 40664727673. The next prime is 40664727781. The reversal of 40664727683 is 38672746604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40664727683 - 2⁸ = 40664727427 is a prime.

It is not a weakly prime, because it can be changed into another prime (40664727673) 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, 20332363841 + 20332363842.

It is an arithmetic number, because the mean of its divisors is an integer number (20332363842).

Almost surely, 2^40664727683 is an apocalyptic number.

40664727683 is a deficient number, since it is larger than the sum of its proper divisors (1).

40664727683 is an equidigital number, since it uses as much as digits as its factorization.

40664727683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 40664727683 in words is "forty billion, six hundred sixty-four million, seven hundred twenty-seven thousand, six hundred eighty-three".