491090469013 has 8 divisors (see below), whose sum is σ = 491282419968. Its totient is φ = 490898566704.

The previous prime is 491090469011. The next prime is 491090469017. The reversal of 491090469013 is 310964090194.

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

It is a cyclic number.

It is not a de Polignac number, because 491090469013 - 2¹ = 491090469011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491090469011) 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 7 ways as a sum of consecutive naturals, for example, 46823256 + ... + 46833742.

It is an arithmetic number, because the mean of its divisors is an integer number (61410302496).

Almost surely, 2^491090469013 is an apocalyptic number.

It is an amenable number.

491090469013 is a deficient number, since it is larger than the sum of its proper divisors (191950955).

491090469013 is a wasteful number, since it uses less digits than its factorization.

491090469013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24323.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 491090469013 in words is "four hundred ninety-one billion, ninety million, four hundred sixty-nine thousand, thirteen".