508421291713 has 4 divisors (see below), whose sum is σ = 508482342340. Its totient is φ = 508360241088.

The previous prime is 508421291689. The next prime is 508421291747. The reversal of 508421291713 is 317192124805.

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 68365515024 + 440055776689 = 261468^2 + 663367^2 .

It is a cyclic number.

It is not a de Polignac number, because 508421291713 - 2⁹ = 508421291201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 508421291713.

It is not an unprimeable number, because it can be changed into a prime (508421291773) 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, 30512820 + ... + 30529477.

It is an arithmetic number, because the mean of its divisors is an integer number (127120585585).

Almost surely, 2^508421291713 is an apocalyptic number.

It is an amenable number.

508421291713 is a deficient number, since it is larger than the sum of its proper divisors (61050627).

508421291713 is an equidigital number, since it uses as much as digits as its factorization.

508421291713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61050626.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 508421291713 in words is "five hundred eight billion, four hundred twenty-one million, two hundred ninety-one thousand, seven hundred thirteen".