212724233728 has 40 divisors (see below), whose sum is σ = 431019444240. Its totient is φ = 104864040960.

The previous prime is 212724233699. The next prime is 212724233741. The reversal of 212724233728 is 827332427212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2889543 + ... + 2962246.

It is an arithmetic number, because the mean of its divisors is an integer number (10775486106).

Almost surely, 2^212724233728 is an apocalyptic number.

It is an amenable number.

212724233728 is an abundant number, since it is smaller than the sum of its proper divisors (218295210512).

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

212724233728 is an frugal number, since it uses more digits than its factorization.

212724233728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851878 (or 5851862 counting only the distinct ones).

The product of its digits is 451584, while the sum is 43.

The spelling of 212724233728 in words is "two hundred twelve billion, seven hundred twenty-four million, two hundred thirty-three thousand, seven hundred twenty-eight".