452216037613 has 4 divisors (see below), whose sum is σ = 478816981020. Its totient is φ = 425615094208.

The previous prime is 452216037599. The next prime is 452216037617. The reversal of 452216037613 is 316730612254.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 388992958249 + 63223079364 = 623693^2 + 251442^2 .

It is a cyclic number.

It is not a de Polignac number, because 452216037613 - 2⁹ = 452216037101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452216037617) 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, 13300471678 + ... + 13300471711.

It is an arithmetic number, because the mean of its divisors is an integer number (119704245255).

Almost surely, 2^452216037613 is an apocalyptic number.

It is an amenable number.

452216037613 is a deficient number, since it is larger than the sum of its proper divisors (26600943407).

452216037613 is a wasteful number, since it uses less digits than its factorization.

452216037613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26600943406.

The product of its (nonzero) digits is 181440, while the sum is 40.

Adding to 452216037613 its reverse (316730612254), we get a palindrome (768946649867).

The spelling of 452216037613 in words is "four hundred fifty-two billion, two hundred sixteen million, thirty-seven thousand, six hundred thirteen".