405208385057 has 16 divisors (see below), whose sum is σ = 479115715200. Its totient is φ = 335308740480.

The previous prime is 405208385053. The next prime is 405208385083. The reversal of 405208385057 is 750583802504.

It is not a de Polignac number, because 405208385057 - 2² = 405208385053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405208385051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1870694 + ... + 2076032.

It is an arithmetic number, because the mean of its divisors is an integer number (29944732200).

Almost surely, 2^405208385057 is an apocalyptic number.

It is an amenable number.

405208385057 is a deficient number, since it is larger than the sum of its proper divisors (73907330143).

405208385057 is a wasteful number, since it uses less digits than its factorization.

405208385057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215096.

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 405208385057 in words is "four hundred five billion, two hundred eight million, three hundred eighty-five thousand, fifty-seven".