505018705338 has 64 divisors (see below), whose sum is σ = 1286711562240. Its totient is φ = 143827066800.

The previous prime is 505018705337. The next prime is 505018705369. The reversal of 505018705338 is 833507810505.

505018705338 is a `hidden beast` number, since 50 + 50 + 18 + 7 + 0 + 533 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 505018705293 and 505018705302.

It is not an unprimeable number, because it can be changed into a prime (505018705337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2030398 + ... + 2265513.

It is an arithmetic number, because the mean of its divisors is an integer number (20104868160).

Almost surely, 2^505018705338 is an apocalyptic number.

505018705338 is an abundant number, since it is smaller than the sum of its proper divisors (781692856902).

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

505018705338 is a wasteful number, since it uses less digits than its factorization.

505018705338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296240 (or 4296234 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 505018705338 in words is "five hundred five billion, eighteen million, seven hundred five thousand, three hundred thirty-eight".