459546009491 has 4 divisors (see below), whose sum is σ = 459983256984. Its totient is φ = 459108762000.

The previous prime is 459546009437. The next prime is 459546009499. The reversal of 459546009491 is 194900645954.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-459546009491 is a prime.

It is a super-2 number, since 2×459546009491² (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 (459546009499) 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, 218622170 + ... + 218624271.

It is an arithmetic number, because the mean of its divisors is an integer number (114995814246).

Almost surely, 2^459546009491 is an apocalyptic number.

459546009491 is a deficient number, since it is larger than the sum of its proper divisors (437247493).

459546009491 is a wasteful number, since it uses less digits than its factorization.

459546009491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437247492.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 459546009491 in words is "four hundred fifty-nine billion, five hundred forty-six million, nine thousand, four hundred ninety-one".