405405000001 has 2 divisors, whose sum is σ = 405405000002. Its totient is φ = 405405000000.

The previous prime is 405404999999. The next prime is 405405000017. The reversal of 405405000001 is 100000504504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405004960000 + 400040001 = 636400^2 + 20001^2 .

It is a cyclic number.

It is not a de Polignac number, because 405405000001 - 2¹ = 405404999999 is a prime.

Together with 405404999999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (405405000101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202702500000 + 202702500001.

It is an arithmetic number, because the mean of its divisors is an integer number (202702500001).

Almost surely, 2^405405000001 is an apocalyptic number.

It is an amenable number.

405405000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

405405000001 is an equidigital number, since it uses as much as digits as its factorization.

405405000001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 19.

Adding to 405405000001 its reverse (100000504504), we get a palindrome (505405504505).

The spelling of 405405000001 in words is "four hundred five billion, four hundred five million, one", and thus it is an aban number.