5642454614449 has 2 divisors, whose sum is σ = 5642454614450. Its totient is φ = 5642454614448.

The previous prime is 5642454614437. The next prime is 5642454614521. The reversal of 5642454614449 is 9444164542465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4384396271025 + 1258058343424 = 2093895^2 + 1121632^2 .

It is a cyclic number.

It is not a de Polignac number, because 5642454614449 - 2⁵ = 5642454614417 is a prime.

It is a super-2 number, since 2×5642454614449² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5642454614393 and 5642454614402.

It is not a weakly prime, because it can be changed into another prime (5642454614149) 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 as a sum of consecutive naturals, namely, 2821227307224 + 2821227307225.

It is an arithmetic number, because the mean of its divisors is an integer number (2821227307225).

Almost surely, 2^{5642454614449} is an apocalyptic number.

It is an amenable number.

5642454614449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5642454614449 is an equidigital number, since it uses as much as digits as its factorization.

5642454614449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66355200, while the sum is 58.

The spelling of 5642454614449 in words is "five trillion, six hundred forty-two billion, four hundred fifty-four million, six hundred fourteen thousand, four hundred forty-nine".