542366102243 has 4 divisors (see below), whose sum is σ = 619846974000. Its totient is φ = 464885230488.

The previous prime is 542366102219. The next prime is 542366102249. The reversal of 542366102243 is 342201663245.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-542366102243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542366102197 and 542366102206.

It is not an unprimeable number, because it can be changed into a prime (542366102249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38740435868 + ... + 38740435881.

It is an arithmetic number, because the mean of its divisors is an integer number (154961743500).

Almost surely, 2^542366102243 is an apocalyptic number.

542366102243 is a deficient number, since it is larger than the sum of its proper divisors (77480871757).

542366102243 is an equidigital number, since it uses as much as digits as its factorization.

542366102243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77480871756.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 542366102243 its reverse (342201663245), we get a palindrome (884567765488).

The spelling of 542366102243 in words is "five hundred forty-two billion, three hundred sixty-six million, one hundred two thousand, two hundred forty-three".