409992807811 has 2 divisors, whose sum is σ = 409992807812. Its totient is φ = 409992807810.

The previous prime is 409992807799. The next prime is 409992807859. The reversal of 409992807811 is 118708299904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 409992807811 - 2³³ = 401402873219 is a prime.

It is a super-2 number, since 2×409992807811² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (409992807611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204996403905 + 204996403906.

It is an arithmetic number, because the mean of its divisors is an integer number (204996403906).

Almost surely, 2^409992807811 is an apocalyptic number.

409992807811 is a deficient number, since it is larger than the sum of its proper divisors (1).

409992807811 is an equidigital number, since it uses as much as digits as its factorization.

409992807811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 58.

The spelling of 409992807811 in words is "four hundred nine billion, nine hundred ninety-two million, eight hundred seven thousand, eight hundred eleven".