212945871032 has 32 divisors (see below), whose sum is σ = 404631763200. Its totient is φ = 105047545824.

The previous prime is 212945871031. The next prime is 212945871043. The reversal of 212945871032 is 230178549212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212945871031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 273713 + ... + 707679.

It is an arithmetic number, because the mean of its divisors is an integer number (12644742600).

Almost surely, 2^212945871032 is an apocalyptic number.

It is an amenable number.

212945871032 is a deficient number, since it is larger than the sum of its proper divisors (191685892168).

212945871032 is a wasteful number, since it uses less digits than its factorization.

212945871032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434795 (or 434791 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 212945871032 in words is "two hundred twelve billion, nine hundred forty-five million, eight hundred seventy-one thousand, thirty-two".