542243404104542 has 256 divisors, whose sum is σ = 1037147937638400. Its totient is φ = 207382209914880.

The previous prime is 542243404104481. The next prime is 542243404104547. The reversal of 542243404104542 is 245401404342245.

It is a junction number, because it is equal to n+sod(n) for n = 542243404104493 and 542243404104502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542243404104547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 53724695648 + ... + 53724705740.

It is an arithmetic number, because the mean of its divisors is an integer number (4051359131400).

Almost surely, 2^{542243404104542} is an apocalyptic number.

542243404104542 is a deficient number, since it is larger than the sum of its proper divisors (494904533533858).

542243404104542 is a wasteful number, since it uses less digits than its factorization.

542243404104542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10931.

The product of its (nonzero) digits is 2457600, while the sum is 44.

Adding to 542243404104542 its reverse (245401404342245), we get a palindrome (787644808446787).

The spelling of 542243404104542 in words is "five hundred forty-two trillion, two hundred forty-three billion, four hundred four million, one hundred four thousand, five hundred forty-two".