493316283891 has 4 divisors (see below), whose sum is σ = 657755045192. Its totient is φ = 328877522592.

The previous prime is 493316283883. The next prime is 493316283919. The reversal of 493316283891 is 198382613394.

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

It is not a de Polignac number, because 493316283891 - 2³ = 493316283883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493316213891) 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, 82219380646 + ... + 82219380651.

It is an arithmetic number, because the mean of its divisors is an integer number (164438761298).

Almost surely, 2^493316283891 is an apocalyptic number.

493316283891 is a deficient number, since it is larger than the sum of its proper divisors (164438761301).

493316283891 is a wasteful number, since it uses less digits than its factorization.

493316283891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164438761300.

The product of its digits is 6718464, while the sum is 57.

The spelling of 493316283891 in words is "four hundred ninety-three billion, three hundred sixteen million, two hundred eighty-three thousand, eight hundred ninety-one".