542443541021329 has 2 divisors, whose sum is σ = 542443541021330. Its totient is φ = 542443541021328.

The previous prime is 542443541021323. The next prime is 542443541021461. The reversal of 542443541021329 is 923120145344245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540205764374929 + 2237776646400 = 23242327^2 + 1495920^2 .

It is a cyclic number.

It is not a de Polignac number, because 542443541021329 - 2⁵ = 542443541021297 is a prime.

It is not a weakly prime, because it can be changed into another prime (542443541021323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271221770510664 + 271221770510665.

It is an arithmetic number, because the mean of its divisors is an integer number (271221770510665).

Almost surely, 2^{542443541021329} is an apocalyptic number.

It is an amenable number.

542443541021329 is a deficient number, since it is larger than the sum of its proper divisors (1).

542443541021329 is an equidigital number, since it uses as much as digits as its factorization.

542443541021329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 542443541021329 in words is "five hundred forty-two trillion, four hundred forty-three billion, five hundred forty-one million, twenty-one thousand, three hundred twenty-nine".