844658116454543 has 2 divisors, whose sum is σ = 844658116454544. Its totient is φ = 844658116454542.

The previous prime is 844658116454513. The next prime is 844658116454563. The reversal of 844658116454543 is 345454611856448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 844658116454543 - 2¹⁸ = 844658116192399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844658116454513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422329058227271 + 422329058227272.

It is an arithmetic number, because the mean of its divisors is an integer number (422329058227272).

Almost surely, 2^{844658116454543} is an apocalyptic number.

844658116454543 is a deficient number, since it is larger than the sum of its proper divisors (1).

844658116454543 is an equidigital number, since it uses as much as digits as its factorization.

844658116454543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736000, while the sum is 68.

The spelling of 844658116454543 in words is "eight hundred forty-four trillion, six hundred fifty-eight billion, one hundred sixteen million, four hundred fifty-four thousand, five hundred forty-three".