40682991571 has 2 divisors, whose sum is σ = 40682991572. Its totient is φ = 40682991570.

The previous prime is 40682991541. The next prime is 40682991611. The reversal of 40682991571 is 17519928604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40682991571 - 2³³ = 32093056979 is a prime.

It is not a weakly prime, because it can be changed into another prime (40682991541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20341495785 + 20341495786.

It is an arithmetic number, because the mean of its divisors is an integer number (20341495786).

Almost surely, 2^40682991571 is an apocalyptic number.

40682991571 is a deficient number, since it is larger than the sum of its proper divisors (1).

40682991571 is an equidigital number, since it uses as much as digits as its factorization.

40682991571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 40682991571 in words is "forty billion, six hundred eighty-two million, nine hundred ninety-one thousand, five hundred seventy-one".