542043641305 has 16 divisors (see below), whose sum is σ = 676297440720. Its totient is φ = 416556673792.

The previous prime is 542043641303. The next prime is 542043641317. The reversal of 542043641305 is 503146340245.

It can be written as a sum of positive squares in 8 ways, for example, as 11679557184 + 530364084121 = 108072^2 + 728261^2 .

It is a cyclic number.

It is not a de Polignac number, because 542043641305 - 2¹ = 542043641303 is a prime.

It is a super-2 number, since 2×542043641305² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (542043641303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9459334 + ... + 9516463.

It is an arithmetic number, because the mean of its divisors is an integer number (42268590045).

Almost surely, 2^542043641305 is an apocalyptic number.

It is an amenable number.

542043641305 is a deficient number, since it is larger than the sum of its proper divisors (134253799415).

542043641305 is a wasteful number, since it uses less digits than its factorization.

542043641305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18976028.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 542043641305 in words is "five hundred forty-two billion, forty-three million, six hundred forty-one thousand, three hundred five".