405085943807 has 2 divisors, whose sum is σ = 405085943808. Its totient is φ = 405085943806.

The previous prime is 405085943771. The next prime is 405085943837. The reversal of 405085943807 is 708349580504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405085943807 - 2⁸ = 405085943551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405085943837) 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, 202542971903 + 202542971904.

It is an arithmetic number, because the mean of its divisors is an integer number (202542971904).

Almost surely, 2^405085943807 is an apocalyptic number.

405085943807 is a deficient number, since it is larger than the sum of its proper divisors (1).

405085943807 is an equidigital number, since it uses as much as digits as its factorization.

405085943807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 405085943807 in words is "four hundred five billion, eighty-five million, nine hundred forty-three thousand, eight hundred seven".