212662443918 has 32 divisors (see below), whose sum is σ = 437393779200. Its totient is φ = 68902999616.

The previous prime is 212662443907. The next prime is 212662443923. The reversal of 212662443918 is 819344266212.

It is a congruent 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, 3343446 + ... + 3406457.

It is an arithmetic number, because the mean of its divisors is an integer number (13668555600).

Almost surely, 2^212662443918 is an apocalyptic number.

212662443918 is an abundant number, since it is smaller than the sum of its proper divisors (224731335282).

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

212662443918 is a wasteful number, since it uses less digits than its factorization.

212662443918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750056.

The product of its digits is 995328, while the sum is 48.

The spelling of 212662443918 in words is "two hundred twelve billion, six hundred sixty-two million, four hundred forty-three thousand, nine hundred eighteen".