212887443852 has 144 divisors (see below), whose sum is σ = 573665688960. Its totient is φ = 66375189504.

The previous prime is 212887443827. The next prime is 212887443911. The reversal of 212887443852 is 258344788212.

It is a happy number.

212887443852 is a `hidden beast` number, since 2 + 12 + 88 + 74 + 438 + 52 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29388543 + ... + 29395785.

Almost surely, 2^212887443852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212887443852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286832844480).

212887443852 is an abundant number, since it is smaller than the sum of its proper divisors (360778245108).

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

212887443852 is a wasteful number, since it uses less digits than its factorization.

212887443852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7812 (or 7807 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The spelling of 212887443852 in words is "two hundred twelve billion, eight hundred eighty-seven million, four hundred forty-three thousand, eight hundred fifty-two".