506431604605 has 8 divisors (see below), whose sum is σ = 624142734552. Its totient is φ = 394195411008.

The previous prime is 506431604597. The next prime is 506431604629. The reversal of 506431604605 is 506406134605.

It can be written as a sum of positive squares in 4 ways, for example, as 47205818361 + 459225786244 = 217269^2 + 677662^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 506431604605 - 2³ = 506431604597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368733882 + ... + 1368734251.

It is an arithmetic number, because the mean of its divisors is an integer number (78017841819).

Almost surely, 2^506431604605 is an apocalyptic number.

It is an amenable number.

506431604605 is a deficient number, since it is larger than the sum of its proper divisors (117711129947).

506431604605 is a wasteful number, since it uses less digits than its factorization.

506431604605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737468175.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 506431604605 in words is "five hundred six billion, four hundred thirty-one million, six hundred four thousand, six hundred five".