493975918317 has 32 divisors (see below), whose sum is σ = 796922449920. Its totient is φ = 265869743040.

The previous prime is 493975918243. The next prime is 493975918351. The reversal of 493975918317 is 713819579394.

It is not a de Polignac number, because 493975918317 - 2⁸ = 493975918061 is a prime.

It is a super-2 number, since 2×493975918317² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493975918357) 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 31 ways as a sum of consecutive naturals, for example, 3509109 + ... + 3647162.

It is an arithmetic number, because the mean of its divisors is an integer number (24903826560).

Almost surely, 2^493975918317 is an apocalyptic number.

It is an amenable number.

493975918317 is a deficient number, since it is larger than the sum of its proper divisors (302946531603).

493975918317 is a wasteful number, since it uses less digits than its factorization.

493975918317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156473.

The product of its digits is 51438240, while the sum is 66.

The spelling of 493975918317 in words is "four hundred ninety-three billion, nine hundred seventy-five million, nine hundred eighteen thousand, three hundred seventeen".