491411968597 has 16 divisors (see below), whose sum is σ = 555795463680. Its totient is φ = 430439284800.

The previous prime is 491411968583. The next prime is 491411968601. The reversal of 491411968597 is 795869114194.

It is a cyclic number.

It is not a de Polignac number, because 491411968597 - 2⁷ = 491411968469 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 (491411968097) 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, 3068398 + ... + 3224575.

It is an arithmetic number, because the mean of its divisors is an integer number (34737216480).

Almost surely, 2^491411968597 is an apocalyptic number.

It is an amenable number.

491411968597 is a deficient number, since it is larger than the sum of its proper divisors (64383495083).

491411968597 is a wasteful number, since it uses less digits than its factorization.

491411968597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293244.

The product of its digits is 19595520, while the sum is 64.

The spelling of 491411968597 in words is "four hundred ninety-one billion, four hundred eleven million, nine hundred sixty-eight thousand, five hundred ninety-seven".