505104427727117 has 4 divisors (see below), whose sum is σ = 505176390182880. Its totient is φ = 505032465271356.

The previous prime is 505104427727083. The next prime is 505104427727167. The reversal of 505104427727117 is 711727724401505.

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 505104427727117 - 2²⁰ = 505104426678541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505104427727167) 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, 35981217353 + ... + 35981231390.

It is an arithmetic number, because the mean of its divisors is an integer number (126294097545720).

Almost surely, 2^{505104427727117} is an apocalyptic number.

It is an amenable number.

505104427727117 is a deficient number, since it is larger than the sum of its proper divisors (71962455763).

505104427727117 is an equidigital number, since it uses as much as digits as its factorization.

505104427727117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71962455762.

The product of its (nonzero) digits is 3841600, while the sum is 53.

The spelling of 505104427727117 in words is "five hundred five trillion, one hundred four billion, four hundred twenty-seven million, seven hundred twenty-seven thousand, one hundred seventeen".