542347743193 has 4 divisors (see below), whose sum is σ = 561049389540. Its totient is φ = 523646096848.

The previous prime is 542347743173. The next prime is 542347743209. The reversal of 542347743193 is 391347743245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 86085320409 + 456262422784 = 293403^2 + 675472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542347743193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542347743193.

It is not an unprimeable number, because it can be changed into a prime (542347743173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9350823130 + ... + 9350823187.

It is an arithmetic number, because the mean of its divisors is an integer number (140262347385).

Almost surely, 2^542347743193 is an apocalyptic number.

It is an amenable number.

542347743193 is a deficient number, since it is larger than the sum of its proper divisors (18701646347).

542347743193 is a wasteful number, since it uses less digits than its factorization.

542347743193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18701646346.

The product of its digits is 7620480, while the sum is 52.

Adding to 542347743193 its sum of digits (52), we get a palindrome (542347743245).

The spelling of 542347743193 in words is "five hundred forty-two billion, three hundred forty-seven million, seven hundred forty-three thousand, one hundred ninety-three".