212071492864 has 144 divisors (see below), whose sum is σ = 528439080960. Its totient is φ = 82520340480.

The previous prime is 212071492817. The next prime is 212071492889. The reversal of 212071492864 is 468294170212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16531957 + ... + 16544779.

It is an arithmetic number, because the mean of its divisors is an integer number (3669715840).

Almost surely, 2^212071492864 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 212071492864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264219540480).

212071492864 is an abundant number, since it is smaller than the sum of its proper divisors (316367588096).

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

212071492864 is a wasteful number, since it uses less digits than its factorization.

212071492864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13696 (or 13682 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 212071492864 in words is "two hundred twelve billion, seventy-one million, four hundred ninety-two thousand, eight hundred sixty-four".