4542440442461 has 2 divisors, whose sum is σ = 4542440442462. Its totient is φ = 4542440442460.

The previous prime is 4542440442427. The next prime is 4542440442469. The reversal of 4542440442461 is 1642440442454.

4542440442461 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2441625004900 + 2100815437561 = 1562570^2 + 1449419^2 .

It is a cyclic number.

It is not a de Polignac number, because 4542440442461 - 2³⁴ = 4525260573277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4542440442469) 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 as a sum of consecutive naturals, namely, 2271220221230 + 2271220221231.

It is an arithmetic number, because the mean of its divisors is an integer number (2271220221231).

Almost surely, 2^{4542440442461} is an apocalyptic number.

It is an amenable number.

4542440442461 is a deficient number, since it is larger than the sum of its proper divisors (1).

4542440442461 is an equidigital number, since it uses as much as digits as its factorization.

4542440442461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1966080, while the sum is 44.

The spelling of 4542440442461 in words is "four trillion, five hundred forty-two billion, four hundred forty million, four hundred forty-two thousand, four hundred sixty-one".