322781875252 has 12 divisors (see below), whose sum is σ = 572606203876. Its totient is φ = 159180102720.

The previous prime is 322781875217. The next prime is 322781875253. The reversal of 322781875252 is 252578187223.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220819167396 + 101962707856 = 469914^2 + 319316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 322781875252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322781875253) 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 3 ways as a sum of consecutive naturals, for example, 552708399 + ... + 552708982.

Almost surely, 2^322781875252 is an apocalyptic number.

It is an amenable number.

322781875252 is a deficient number, since it is larger than the sum of its proper divisors (249824328624).

322781875252 is a wasteful number, since it uses less digits than its factorization.

322781875252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105417458 (or 1105417456 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 52.

The spelling of 322781875252 in words is "three hundred twenty-two billion, seven hundred eighty-one million, eight hundred seventy-five thousand, two hundred fifty-two".