505030212018 has 24 divisors (see below), whose sum is σ = 1112778435600. Its totient is φ = 165490125624.

The previous prime is 505030211981. The next prime is 505030212019. The reversal of 505030212018 is 810212030505.

It is a happy number.

505030212018 is a `hidden beast` number, since 505 + 0 + 30 + 2 + 120 + 1 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 505030211982 and 505030212000.

It is not an unprimeable number, because it can be changed into a prime (505030212019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237772108 + ... + 237774231.

It is an arithmetic number, because the mean of its divisors is an integer number (46365768150).

Almost surely, 2^505030212018 is an apocalyptic number.

505030212018 is an abundant number, since it is smaller than the sum of its proper divisors (607748223582).

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

505030212018 is a wasteful number, since it uses less digits than its factorization.

505030212018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475546406 (or 475546403 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 505030212018 in words is "five hundred five billion, thirty million, two hundred twelve thousand, eighteen".