212384631018 has 32 divisors (see below), whose sum is σ = 485473659264. Its totient is φ = 60678438912.

The previous prime is 212384630981. The next prime is 212384631037. The reversal of 212384631018 is 810136483212.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869946 + ... + 1087002.

It is an arithmetic number, because the mean of its divisors is an integer number (15171051852).

Almost surely, 2^212384631018 is an apocalyptic number.

212384631018 is an abundant number, since it is smaller than the sum of its proper divisors (273089028246).

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

212384631018 is a wasteful number, since it uses less digits than its factorization.

212384631018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240366.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 212384631018 in words is "two hundred twelve billion, three hundred eighty-four million, six hundred thirty-one thousand, eighteen".