405685084603 has 2 divisors, whose sum is σ = 405685084604. Its totient is φ = 405685084602.

The previous prime is 405685084591. The next prime is 405685084663. The reversal of 405685084603 is 306480586504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405685084603 is a prime.

It is not a weakly prime, because it can be changed into another prime (405685084663) 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, 202842542301 + 202842542302.

It is an arithmetic number, because the mean of its divisors is an integer number (202842542302).

Almost surely, 2^405685084603 is an apocalyptic number.

405685084603 is a deficient number, since it is larger than the sum of its proper divisors (1).

405685084603 is an equidigital number, since it uses as much as digits as its factorization.

405685084603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 405685084603 in words is "four hundred five billion, six hundred eighty-five million, eighty-four thousand, six hundred three".