42542415444 has 48 divisors (see below), whose sum is σ = 101973027968. Its totient is φ = 13794219648.

The previous prime is 42542415437. The next prime is 42542415523. The reversal of 42542415444 is 44451424524.

It is a super-2 number, since 2×42542415444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2405217 + ... + 2422839.

Almost surely, 2^42542415444 is an apocalyptic number.

It is an amenable number.

42542415444 is an abundant number, since it is smaller than the sum of its proper divisors (59430612524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42542415444 is a wasteful number, since it uses less digits than its factorization.

42542415444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23104 (or 23102 counting only the distinct ones).

The product of its digits is 409600, while the sum is 39.

Adding to 42542415444 its reverse (44451424524), we get a palindrome (86993839968).

The spelling of 42542415444 in words is "forty-two billion, five hundred forty-two million, four hundred fifteen thousand, four hundred forty-four".