491410814039 has 2 divisors, whose sum is σ = 491410814040. Its totient is φ = 491410814038.

The previous prime is 491410813967. The next prime is 491410814093. The reversal of 491410814039 is 930418014194.

Together with next prime (491410814093) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 491410814039 - 2²⁴ = 491394036823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491410813039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245705407019 + 245705407020.

It is an arithmetic number, because the mean of its divisors is an integer number (245705407020).

Almost surely, 2^491410814039 is an apocalyptic number.

491410814039 is a deficient number, since it is larger than the sum of its proper divisors (1).

491410814039 is an equidigital number, since it uses as much as digits as its factorization.

491410814039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 491410814039 in words is "four hundred ninety-one billion, four hundred ten million, eight hundred fourteen thousand, thirty-nine".