542066644993 has 2 divisors, whose sum is σ = 542066644994. Its totient is φ = 542066644992.

The previous prime is 542066644969. The next prime is 542066645053. The reversal of 542066644993 is 399446660245.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538039854144 + 4026790849 = 733512^2 + 63457^2 .

It is a cyclic number.

It is not a de Polignac number, because 542066644993 - 2³³ = 533476710401 is a prime.

It is a super-2 number, since 2×542066644993² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542066644963) 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, 271033322496 + 271033322497.

It is an arithmetic number, because the mean of its divisors is an integer number (271033322497).

Almost surely, 2^542066644993 is an apocalyptic number.

It is an amenable number.

542066644993 is a deficient number, since it is larger than the sum of its proper divisors (1).

542066644993 is an equidigital number, since it uses as much as digits as its factorization.

542066644993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33592320, while the sum is 58.

The spelling of 542066644993 in words is "five hundred forty-two billion, sixty-six million, six hundred forty-four thousand, nine hundred ninety-three".