493039930393 has 4 divisors (see below), whose sum is σ = 493064955940. Its totient is φ = 493014904848.

The previous prime is 493039930343. The next prime is 493039930417. The reversal of 493039930393 is 393039930394.

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 13051463049 + 479988467344 = 114243^2 + 692812^2 .

It is a cyclic number.

It is not a de Polignac number, because 493039930393 - 2²¹ = 493037833241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493039930333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12483198 + ... + 12522631.

It is an arithmetic number, because the mean of its divisors is an integer number (123266238985).

Almost surely, 2^493039930393 is an apocalyptic number.

It is an amenable number.

493039930393 is a deficient number, since it is larger than the sum of its proper divisors (25025547).

493039930393 is a wasteful number, since it uses less digits than its factorization.

493039930393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25025546.

The product of its (nonzero) digits is 6377292, while the sum is 55.

Subtracting from 493039930393 its reverse (393039930394), we obtain a palindrome (99999999999).

The spelling of 493039930393 in words is "four hundred ninety-three billion, thirty-nine million, nine hundred thirty thousand, three hundred ninety-three".