454218037849 has 9 divisors (see below), whose sum is σ = 462087585973. Its totient is φ = 446480337532.

The previous prime is 454218037829. The next prime is 454218037879. The reversal of 454218037849 is 948730812454.

The square root of 454218037849 is 673957.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 454218037849 - 2¹¹ = 454218035801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 454218037849.

It is not an unprimeable number, because it can be changed into a prime (454218037829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39757752 + ... + 39769174.

Almost surely, 2^454218037849 is an apocalyptic number.

454218037849 is the 673957-th square number.

454218037849 is the 336979-th centered octagonal number.

It is an amenable number.

454218037849 is a deficient number, since it is larger than the sum of its proper divisors (7869548124).

454218037849 is an frugal number, since it uses more digits than its factorization.

454218037849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22964 (or 11482 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 454218037849 in words is "four hundred fifty-four billion, two hundred eighteen million, thirty-seven thousand, eight hundred forty-nine".