542044541693 has 2 divisors, whose sum is σ = 542044541694. Its totient is φ = 542044541692.

The previous prime is 542044541617. The next prime is 542044541711. The reversal of 542044541693 is 396145440245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480196333444 + 61848208249 = 692962^2 + 248693^2 .

It is a cyclic number.

It is not a de Polignac number, because 542044541693 - 2¹⁸ = 542044279549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542044541603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271022270846 + 271022270847.

It is an arithmetic number, because the mean of its divisors is an integer number (271022270847).

Almost surely, 2^542044541693 is an apocalyptic number.

It is an amenable number.

542044541693 is a deficient number, since it is larger than the sum of its proper divisors (1).

542044541693 is an equidigital number, since it uses as much as digits as its factorization.

542044541693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 542044541693 in words is "five hundred forty-two billion, forty-four million, five hundred forty-one thousand, six hundred ninety-three".