4252720506344 has 8 divisors (see below), whose sum is σ = 7973850949410. Its totient is φ = 2126360253168.

The previous prime is 4252720506343. The next prime is 4252720506361. The reversal of 4252720506344 is 4436050272524.

It can be written as a sum of positive squares in only one way, i.e., 4084077228100 + 168643278244 = 2020910^2 + 410662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 4252720506295 and 4252720506304.

It is not an unprimeable number, because it can be changed into a prime (4252720506343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265795031639 + ... + 265795031654.

Almost surely, 2^{4252720506344} is an apocalyptic number.

It is an amenable number.

4252720506344 is a deficient number, since it is larger than the sum of its proper divisors (3721130443066).

4252720506344 is a wasteful number, since it uses less digits than its factorization.

4252720506344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531590063299 (or 531590063295 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 44.

Adding to 4252720506344 its reverse (4436050272524), we get a palindrome (8688770778868).

The spelling of 4252720506344 in words is "four trillion, two hundred fifty-two billion, seven hundred twenty million, five hundred six thousand, three hundred forty-four".