505412434423340 has 48 divisors (see below), whose sum is σ = 1107646831243008. Its totient is φ = 193351731528384.

The previous prime is 505412434423333. The next prime is 505412434423349. The reversal of 505412434423340 is 43324434214505.

It is a junction number, because it is equal to n+sod(n) for n = 505412434423291 and 505412434423300.

It is not an unprimeable number, because it can be changed into a prime (505412434423349) 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, 62854022 + ... + 70437581.

It is an arithmetic number, because the mean of its divisors is an integer number (23075975650896).

Almost surely, 2^{505412434423340} is an apocalyptic number.

It is an amenable number.

505412434423340 is an abundant number, since it is smaller than the sum of its proper divisors (602234396819668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505412434423340 is a wasteful number, since it uses less digits than its factorization.

505412434423340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133299878 (or 133299876 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 44.

Adding to 505412434423340 its reverse (43324434214505), we get a palindrome (548736868637845).

The spelling of 505412434423340 in words is "five hundred five trillion, four hundred twelve billion, four hundred thirty-four million, four hundred twenty-three thousand, three hundred forty".