491457068333 has 16 divisors (see below), whose sum is σ = 612774928896. Its totient is φ = 382922789040.

The previous prime is 491457068299. The next prime is 491457068351. The reversal of 491457068333 is 333860754194.

It is not a de Polignac number, because 491457068333 - 2¹⁴ = 491457051949 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 (491457068033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732710 + ... + 1232792.

It is an arithmetic number, because the mean of its divisors is an integer number (38298433056).

Almost surely, 2^491457068333 is an apocalyptic number.

It is an amenable number.

491457068333 is a deficient number, since it is larger than the sum of its proper divisors (121317860563).

491457068333 is a wasteful number, since it uses less digits than its factorization.

491457068333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512864.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 491457068333 in words is "four hundred ninety-one billion, four hundred fifty-seven million, sixty-eight thousand, three hundred thirty-three".