542440110655042 has 16 divisors (see below), whose sum is σ = 841734491936760. Its totient is φ = 261862326206208.

The previous prime is 542440110654989. The next prime is 542440110655043. The reversal of 542440110655042 is 240556011044245.

It can be written as a sum of positive squares in 4 ways, for example, as 429673572787761 + 112766537867281 = 20728569^2 + 10619159^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 542440110655042.

It is not an unprimeable number, because it can be changed into a prime (542440110655043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91998633 + ... + 97717084.

Almost surely, 2^{542440110655042} is an apocalyptic number.

542440110655042 is a deficient number, since it is larger than the sum of its proper divisors (299294381281718).

542440110655042 is a wasteful number, since it uses less digits than its factorization.

542440110655042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189765045.

The product of its (nonzero) digits is 768000, while the sum is 43.

Adding to 542440110655042 its reverse (240556011044245), we get a palindrome (782996121699287).

The spelling of 542440110655042 in words is "five hundred forty-two trillion, four hundred forty billion, one hundred ten million, six hundred fifty-five thousand, forty-two".