491000649353 has 8 divisors (see below), whose sum is σ = 500654521536. Its totient is φ = 481398541200.

The previous prime is 491000649311. The next prime is 491000649361. The reversal of 491000649353 is 353946000194.

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 491000649353 - 2⁶ = 491000649289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491000649253) 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, 12921851 + ... + 12959792.

It is an arithmetic number, because the mean of its divisors is an integer number (62581815192).

Almost surely, 2^491000649353 is an apocalyptic number.

It is an amenable number.

491000649353 is a deficient number, since it is larger than the sum of its proper divisors (9653872183).

491000649353 is a wasteful number, since it uses less digits than its factorization.

491000649353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25882015.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 491000649353 in words is "four hundred ninety-one billion, six hundred forty-nine thousand, three hundred fifty-three".