504901813609 has 4 divisors (see below), whose sum is σ = 504907266640. Its totient is φ = 504896360580.

The previous prime is 504901813607. The next prime is 504901813651. The reversal of 504901813609 is 906318109405.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 504901813609 - 2¹ = 504901813607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504901813601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585187 + ... + 2773624.

It is an arithmetic number, because the mean of its divisors is an integer number (126226816660).

Almost surely, 2^504901813609 is an apocalyptic number.

It is an amenable number.

504901813609 is a deficient number, since it is larger than the sum of its proper divisors (5453031).

504901813609 is an equidigital number, since it uses as much as digits as its factorization.

504901813609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453030.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 504901813609 in words is "five hundred four billion, nine hundred one million, eight hundred thirteen thousand, six hundred nine".