506044169405 has 12 divisors (see below), whose sum is σ = 628914827892. Its totient is φ = 390875493120.

The previous prime is 506044169399. The next prime is 506044169443. The reversal of 506044169405 is 504961440605.

It can be written as a sum of positive squares in 6 ways, for example, as 45109087321 + 460935082084 = 212389^2 + 678922^2 .

It is not a de Polignac number, because 506044169405 - 2³⁶ = 437324692669 is a prime.

It is a Duffinian number.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 60167516 + ... + 60175925.

It is an arithmetic number, because the mean of its divisors is an integer number (52409568991).

Almost surely, 2^506044169405 is an apocalyptic number.

It is an amenable number.

506044169405 is a deficient number, since it is larger than the sum of its proper divisors (122870658487).

506044169405 is a wasteful number, since it uses less digits than its factorization.

506044169405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120343504 (or 120343475 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 506044169405 in words is "five hundred six billion, forty-four million, one hundred sixty-nine thousand, four hundred five".