542461334021 has 2 divisors, whose sum is σ = 542461334022. Its totient is φ = 542461334020.

The previous prime is 542461333969. The next prime is 542461334053. The reversal of 542461334021 is 120433164245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334743244900 + 207718089121 = 578570^2 + 455761^2 .

It is a cyclic number.

It is not a de Polignac number, because 542461334021 - 2¹⁰ = 542461332997 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 (542461334521) 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, 271230667010 + 271230667011.

It is an arithmetic number, because the mean of its divisors is an integer number (271230667011).

Almost surely, 2^542461334021 is an apocalyptic number.

It is an amenable number.

542461334021 is a deficient number, since it is larger than the sum of its proper divisors (1).

542461334021 is an equidigital number, since it uses as much as digits as its factorization.

542461334021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 542461334021 its reverse (120433164245), we get a palindrome (662894498266).

The spelling of 542461334021 in words is "five hundred forty-two billion, four hundred sixty-one million, three hundred thirty-four thousand, twenty-one".