491063466763 has 4 divisors (see below), whose sum is σ = 491065244280. Its totient is φ = 491061689248.

The previous prime is 491063466731. The next prime is 491063466781. The reversal of 491063466763 is 367664360194.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 491063466763 - 2⁵ = 491063466731 is a prime.

It is a super-2 number, since 2×491063466763² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491060466763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375598 + ... + 1059811.

It is an arithmetic number, because the mean of its divisors is an integer number (122766311070).

Almost surely, 2^491063466763 is an apocalyptic number.

491063466763 is a deficient number, since it is larger than the sum of its proper divisors (1777517).

491063466763 is a wasteful number, since it uses less digits than its factorization.

491063466763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777516.

The product of its (nonzero) digits is 11757312, while the sum is 55.

The spelling of 491063466763 in words is "four hundred ninety-one billion, sixty-three million, four hundred sixty-six thousand, seven hundred sixty-three".