504536606635405 has 4 divisors (see below), whose sum is σ = 605443927962492. Its totient is φ = 403629285308320.

The previous prime is 504536606635367. The next prime is 504536606635511.

504536606635405 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126653371305444 + 377883235329961 = 11254038^2 + 19439219^2 .

It is not a de Polignac number, because 504536606635405 - 2³⁵ = 504502246897037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 504536606635405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50453660663536 + ... + 50453660663545.

It is an arithmetic number, because the mean of its divisors is an integer number (151360981990623).

Almost surely, 2^{504536606635405} is an apocalyptic number.

It is an amenable number.

504536606635405 is a deficient number, since it is larger than the sum of its proper divisors (100907321327087).

504536606635405 is a wasteful number, since it uses less digits than its factorization.

504536606635405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100907321327086.

The product of its (nonzero) digits is 116640000, while the sum is 58.

The spelling of 504536606635405 in words is "five hundred four trillion, five hundred thirty-six billion, six hundred six million, six hundred thirty-five thousand, four hundred five".