491214989683 has 8 divisors (see below), whose sum is σ = 541891920240. Its totient is φ = 441541562880.

The previous prime is 491214989659. The next prime is 491214989731. The reversal of 491214989683 is 386989412194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 491214989683 - 2²⁹ = 490678118771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (491214989183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250874910 + ... + 250876867.

It is an arithmetic number, because the mean of its divisors is an integer number (67736490030).

Almost surely, 2^491214989683 is an apocalyptic number.

491214989683 is a deficient number, since it is larger than the sum of its proper divisors (50676930557).

491214989683 is a wasteful number, since it uses less digits than its factorization.

491214989683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501751877.

The product of its digits is 26873856, while the sum is 64.

The spelling of 491214989683 in words is "four hundred ninety-one billion, two hundred fourteen million, nine hundred eighty-nine thousand, six hundred eighty-three".