40311801671 has 2 divisors, whose sum is σ = 40311801672. Its totient is φ = 40311801670.

The previous prime is 40311801581. The next prime is 40311801679. The reversal of 40311801671 is 17610811304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40311801671 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40311801679) 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, 20155900835 + 20155900836.

It is an arithmetic number, because the mean of its divisors is an integer number (20155900836).

Almost surely, 2^40311801671 is an apocalyptic number.

40311801671 is a deficient number, since it is larger than the sum of its proper divisors (1).

40311801671 is an equidigital number, since it uses as much as digits as its factorization.

40311801671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 40311801671 in words is "forty billion, three hundred eleven million, eight hundred one thousand, six hundred seventy-one".