42542444455 has 8 divisors (see below), whose sum is σ = 58343923872. Its totient is φ = 29171961888.

The previous prime is 42542444453. The next prime is 42542444467. The reversal of 42542444455 is 55444424524.

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

It is a cyclic number.

It is not a de Polignac number, because 42542444455 - 2¹ = 42542444453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542444453) 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 7 ways as a sum of consecutive naturals, for example, 607749172 + ... + 607749241.

It is an arithmetic number, because the mean of its divisors is an integer number (7292990484).

Almost surely, 2^42542444455 is an apocalyptic number.

42542444455 is a deficient number, since it is larger than the sum of its proper divisors (15801479417).

42542444455 is a wasteful number, since it uses less digits than its factorization.

42542444455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215498425.

The product of its digits is 2048000, while the sum is 43.

Adding to 42542444455 its reverse (55444424524), we get a palindrome (97986868979).

The spelling of 42542444455 in words is "forty-two billion, five hundred forty-two million, four hundred forty-four thousand, four hundred fifty-five".