212724323361 has 32 divisors (see below), whose sum is σ = 361891468800. Its totient is φ = 122138364240.

The previous prime is 212724323353. The next prime is 212724323363. The reversal of 212724323361 is 163323427212.

212724323361 is a `hidden beast` number, since 2 + 1 + 272 + 4 + 3 + 23 + 361 = 666.

It is not a de Polignac number, because 212724323361 - 2³ = 212724323353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212724323363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18842871 + ... + 18854156.

It is an arithmetic number, because the mean of its divisors is an integer number (11309108400).

Almost surely, 2^212724323361 is an apocalyptic number.

It is an amenable number.

212724323361 is a deficient number, since it is larger than the sum of its proper divisors (149167145439).

212724323361 is a wasteful number, since it uses less digits than its factorization.

212724323361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37697066 (or 37697060 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The spelling of 212724323361 in words is "two hundred twelve billion, seven hundred twenty-four million, three hundred twenty-three thousand, three hundred sixty-one".