491593363323 has 32 divisors (see below), whose sum is σ = 685137476160. Its totient is φ = 313128345600.

The previous prime is 491593363319. The next prime is 491593363343. The reversal of 491593363323 is 323363395194.

It is not a de Polignac number, because 491593363323 - 2² = 491593363319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (491593363343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17709511 + ... + 17737247.

It is an arithmetic number, because the mean of its divisors is an integer number (21410546130).

Almost surely, 2^491593363323 is an apocalyptic number.

491593363323 is a deficient number, since it is larger than the sum of its proper divisors (193544112837).

491593363323 is a wasteful number, since it uses less digits than its factorization.

491593363323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29887.

The product of its digits is 4723920, while the sum is 51.

The spelling of 491593363323 in words is "four hundred ninety-one billion, five hundred ninety-three million, three hundred sixty-three thousand, three hundred twenty-three".