42542353043 has 8 divisors (see below), whose sum is σ = 42809824512. Its totient is φ = 42275033416.

The previous prime is 42542353033. The next prime is 42542353079. The reversal of 42542353043 is 34035324524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42542353043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42542352994 and 42542353012.

It is not an unprimeable number, because it can be changed into a prime (42542353033) 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, 552896 + ... + 625122.

It is an arithmetic number, because the mean of its divisors is an integer number (5351228064).

Almost surely, 2^42542353043 is an apocalyptic number.

42542353043 is a deficient number, since it is larger than the sum of its proper divisors (267471469).

42542353043 is a wasteful number, since it uses less digits than its factorization.

42542353043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75921.

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 42542353043 its reverse (34035324524), we get a palindrome (76577677567).

The spelling of 42542353043 in words is "forty-two billion, five hundred forty-two million, three hundred fifty-three thousand, forty-three".