491484844513 has 8 divisors (see below), whose sum is σ = 546365286656. Its totient is φ = 439043533200.

The previous prime is 491484844493. The next prime is 491484844517. The reversal of 491484844513 is 315448484194.

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 491484844513 - 2⁵ = 491484844481 is a prime.

It is a super-3 number, since 3×491484844513³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491484844517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609782283 + ... + 609783088.

It is an arithmetic number, because the mean of its divisors is an integer number (68295660832).

Almost surely, 2^491484844513 is an apocalyptic number.

It is an amenable number.

491484844513 is a deficient number, since it is larger than the sum of its proper divisors (54880442143).

491484844513 is a wasteful number, since it uses less digits than its factorization.

491484844513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219565415.

The product of its digits is 8847360, while the sum is 55.

The spelling of 491484844513 in words is "four hundred ninety-one billion, four hundred eighty-four million, eight hundred forty-four thousand, five hundred thirteen".