4491814585231 has 4 divisors (see below), whose sum is σ = 4553346291952. Its totient is φ = 4430282878512.

The previous prime is 4491814585163. The next prime is 4491814585261. The reversal of 4491814585231 is 1325854181944.

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 4491814585231 - 2¹¹ = 4491814583183 is a prime.

It is a super-2 number, since 2×4491814585231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491814585261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30765853251 + ... + 30765853396.

It is an arithmetic number, because the mean of its divisors is an integer number (1138336572988).

Almost surely, 2^{4491814585231} is an apocalyptic number.

4491814585231 is a deficient number, since it is larger than the sum of its proper divisors (61531706721).

4491814585231 is an equidigital number, since it uses as much as digits as its factorization.

4491814585231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61531706720.

The product of its digits is 5529600, while the sum is 55.

The spelling of 4491814585231 in words is "four trillion, four hundred ninety-one billion, eight hundred fourteen million, five hundred eighty-five thousand, two hundred thirty-one".