504243066413 has 4 divisors (see below), whose sum is σ = 513757086588. Its totient is φ = 494729046240.

The previous prime is 504243066281. The next prime is 504243066419. The reversal of 504243066413 is 314660342405.

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 197147544169 + 307095522244 = 444013^2 + 554162^2 .

It is a cyclic number.

It is not a de Polignac number, because 504243066413 - 2¹⁴ = 504243050029 is a prime.

It is a super-2 number, since 2×504243066413² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504243066419) 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, 4757010008 + ... + 4757010113.

It is an arithmetic number, because the mean of its divisors is an integer number (128439271647).

Almost surely, 2^504243066413 is an apocalyptic number.

504243066413 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

504243066413 is a deficient number, since it is larger than the sum of its proper divisors (9514020175).

504243066413 is an equidigital number, since it uses as much as digits as its factorization.

504243066413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9514020174.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 504243066413 in words is "five hundred four billion, two hundred forty-three million, sixty-six thousand, four hundred thirteen".