212431443986 has 32 divisors (see below), whose sum is σ = 330726421440. Its totient is φ = 102252528576.

The previous prime is 212431443943. The next prime is 212431444019. The reversal of 212431443986 is 689344134212.

It is a self number, because there is not a number n which added to its sum of digits gives 212431443986.

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, 6547841 + ... + 6580203.

It is an arithmetic number, because the mean of its divisors is an integer number (10335200670).

Almost surely, 2^212431443986 is an apocalyptic number.

212431443986 is a deficient number, since it is larger than the sum of its proper divisors (118294977454).

212431443986 is a wasteful number, since it uses less digits than its factorization.

212431443986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33338.

The product of its digits is 995328, while the sum is 47.

The spelling of 212431443986 in words is "two hundred twelve billion, four hundred thirty-one million, four hundred forty-three thousand, nine hundred eighty-six".