504394493405 has 16 divisors (see below), whose sum is σ = 662257612224. Its totient is φ = 365743822080.

The previous prime is 504394493401. The next prime is 504394493411.

504394493405 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 504394493405 - 2² = 504394493401 is a prime.

It is a super-3 number, since 3×504394493405³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504394493401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13588007 + ... + 13625076.

It is an arithmetic number, because the mean of its divisors is an integer number (41391100764).

Almost surely, 2^504394493405 is an apocalyptic number.

504394493405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

504394493405 is a deficient number, since it is larger than the sum of its proper divisors (157863118819).

504394493405 is a wasteful number, since it uses less digits than its factorization.

504394493405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27213436.

The product of its (nonzero) digits is 4665600, while the sum is 50.

It can be divided in two parts, 504394 and 493405, that added together give a palindrome (997799).

The spelling of 504394493405 in words is "five hundred four billion, three hundred ninety-four million, four hundred ninety-three thousand, four hundred five".