505441315111451 has 4 divisors (see below), whose sum is σ = 505499903425992. Its totient is φ = 505382726796912.

The previous prime is 505441315111429. The next prime is 505441315111487. The reversal of 505441315111451 is 154111513144505.

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

It is a cyclic number.

It is not a de Polignac number, because 505441315111451 - 2¹⁰ = 505441315110427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505441315111399 and 505441315111408.

It is not an unprimeable number, because it can be changed into a prime (505441315171451) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29294144330 + ... + 29294161583.

It is an arithmetic number, because the mean of its divisors is an integer number (126374975856498).

Almost surely, 2^{505441315111451} is an apocalyptic number.

505441315111451 is a deficient number, since it is larger than the sum of its proper divisors (58588314541).

505441315111451 is an equidigital number, since it uses as much as digits as its factorization.

505441315111451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58588314540.

The product of its (nonzero) digits is 120000, while the sum is 41.

Adding to 505441315111451 its reverse (154111513144505), we get a palindrome (659552828255956).

The spelling of 505441315111451 in words is "five hundred five trillion, four hundred forty-one billion, three hundred fifteen million, one hundred eleven thousand, four hundred fifty-one".