212568732424 has 16 divisors (see below), whose sum is σ = 399749067900. Its totient is φ = 105968980992.

The previous prime is 212568732421. The next prime is 212568732451. The reversal of 212568732424 is 424237865212.

It can be written as a sum of positive squares in 2 ways, for example, as 163159444900 + 49409287524 = 403930^2 + 222282^2 .

It is a super-2 number, since 2×212568732424² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212568732421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39420289 + ... + 39425680.

Almost surely, 2^212568732424 is an apocalyptic number.

It is an amenable number.

212568732424 is a deficient number, since it is larger than the sum of its proper divisors (187180335476).

212568732424 is a wasteful number, since it uses less digits than its factorization.

212568732424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78846312 (or 78846308 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 46.

The spelling of 212568732424 in words is "two hundred twelve billion, five hundred sixty-eight million, seven hundred thirty-two thousand, four hundred twenty-four".