509852885453 has 6 divisors (see below), whose sum is σ = 517576212846. Its totient is φ = 502243136472.

The previous prime is 509852885419. The next prime is 509852885473. The reversal of 509852885453 is 354588258905.

It can be written as a sum of positive squares in only one way, i.e., 360866921284 + 148985964169 = 600722^2 + 385987^2 .

It is not a de Polignac number, because 509852885453 - 2¹⁸ = 509852623309 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 (509852885413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56784650 + ... + 56793627.

It is an arithmetic number, because the mean of its divisors is an integer number (86262702141).

Almost surely, 2^509852885453 is an apocalyptic number.

It is an amenable number.

509852885453 is a deficient number, since it is larger than the sum of its proper divisors (7723327393).

509852885453 is an equidigital number, since it uses as much as digits as its factorization.

509852885453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113578411 (or 113578344 counting only the distinct ones).

The product of its (nonzero) digits is 69120000, while the sum is 62.

The spelling of 509852885453 in words is "five hundred nine billion, eight hundred fifty-two million, eight hundred eighty-five thousand, four hundred fifty-three".