493455688881 has 16 divisors (see below), whose sum is σ = 659581320384. Its totient is φ = 328151250944.

The previous prime is 493455688871. The next prime is 493455688889. The reversal of 493455688881 is 188886554394.

It is a cyclic number.

It is not a de Polignac number, because 493455688881 - 2⁵ = 493455688849 is a prime.

It is a super-2 number, since 2×493455688881² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (493455688889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1878625 + ... + 2125121.

It is an arithmetic number, because the mean of its divisors is an integer number (41223832524).

Almost surely, 2^493455688881 is an apocalyptic number.

It is an amenable number.

493455688881 is a deficient number, since it is larger than the sum of its proper divisors (166125631503).

493455688881 is a wasteful number, since it uses less digits than its factorization.

493455688881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248160.

The product of its digits is 265420800, while the sum is 69.

The spelling of 493455688881 in words is "four hundred ninety-three billion, four hundred fifty-five million, six hundred eighty-eight thousand, eight hundred eighty-one".