252322713728 has 72 divisors (see below), whose sum is σ = 520945722765. Its totient is φ = 121731402240.

The previous prime is 252322713691. The next prime is 252322713737. The reversal of 252322713728 is 827317223252.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 252172700224 + 150013504 = 502168^2 + 12248^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=355192.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 164808323 + ... + 164809853.

Almost surely, 2^252322713728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252322713728

252322713728 is an abundant number, since it is smaller than the sum of its proper divisors (268623009037).

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

252322713728 is an frugal number, since it uses more digits than its factorization.

252322713728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134 (or 1562 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The spelling of 252322713728 in words is "two hundred fifty-two billion, three hundred twenty-two million, seven hundred thirteen thousand, seven hundred twenty-eight".