409568611922 has 6 divisors (see below), whose sum is σ = 614354275479. Its totient is φ = 204783853430.

The previous prime is 409568611883. The next prime is 409568611931. The reversal of 409568611922 is 229116865904.

It can be written as a sum of positive squares in only one way, i.e., 204784305961 + 204784305961 = 452531^2 + 452531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=452531.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 678797 + ... + 1131327.

Almost surely, 2^409568611922 is an apocalyptic number.

409568611922 is a deficient number, since it is larger than the sum of its proper divisors (204785663557).

409568611922 is an frugal number, since it uses more digits than its factorization.

409568611922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905064 (or 452533 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 409568611922 in words is "four hundred nine billion, five hundred sixty-eight million, six hundred eleven thousand, nine hundred twenty-two".