40204827717871 has 2 divisors, whose sum is σ = 40204827717872. Its totient is φ = 40204827717870.

The previous prime is 40204827717833. The next prime is 40204827717893. The reversal of 40204827717871 is 17871772840204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40204827717871 - 2²³ = 40204819329263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40204827717071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20102413858935 + 20102413858936.

It is an arithmetic number, because the mean of its divisors is an integer number (20102413858936).

Almost surely, 2^{40204827717871} is an apocalyptic number.

40204827717871 is a deficient number, since it is larger than the sum of its proper divisors (1).

40204827717871 is an equidigital number, since it uses as much as digits as its factorization.

40204827717871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9834496, while the sum is 58.

The spelling of 40204827717871 in words is "forty trillion, two hundred four billion, eight hundred twenty-seven million, seven hundred seventeen thousand, eight hundred seventy-one".