42542365437 has 108 divisors (see below), whose sum is σ = 73710174720. Its totient is φ = 23614493760.

The previous prime is 42542365423. The next prime is 42542365477. The reversal of 42542365437 is 73456324524.

42542365437 is a `hidden beast` number, since 4 + 2 + 542 + 3 + 65 + 43 + 7 = 666.

It is not a de Polignac number, because 42542365437 - 2⁴ = 42542365421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42542365392 and 42542365401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542365477) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 25580868 + ... + 25582530.

Almost surely, 2^42542365437 is an apocalyptic number.

It is an amenable number.

42542365437 is a deficient number, since it is larger than the sum of its proper divisors (31167809283).

42542365437 is a wasteful number, since it uses less digits than its factorization.

42542365437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 1829 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 45.

The spelling of 42542365437 in words is "forty-two billion, five hundred forty-two million, three hundred sixty-five thousand, four hundred thirty-seven".