405052201682 has 6 divisors (see below), whose sum is σ = 607579652613. Its totient is φ = 202525650812.

The previous prime is 405052201669. The next prime is 405052201699. The reversal of 405052201682 is 286102250504.

It can be written as a sum of positive squares in 2 ways, for example, as 250759576081 + 154292625601 = 500759^2 + 392801^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=450029.

It is a Duffinian number.

It is an unprimeable number.

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 in 2 ways as a sum of consecutive naturals, for example, 675044 + ... + 1125072.

Almost surely, 2^405052201682 is an apocalyptic number.

405052201682 is a deficient number, since it is larger than the sum of its proper divisors (202527450931).

405052201682 is an frugal number, since it uses more digits than its factorization.

405052201682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900060 (or 450031 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 405052201682 in words is "four hundred five billion, fifty-two million, two hundred one thousand, six hundred eighty-two".