42542365436 has 6 divisors (see below), whose sum is σ = 74449139520. Its totient is φ = 21271182716.

The previous prime is 42542365423. The next prime is 42542365477. The reversal of 42542365436 is 63456324524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5317795676 + ... + 5317795683.

It is an arithmetic number, because the mean of its divisors is an integer number (12408189920).

Almost surely, 2^42542365436 is an apocalyptic number.

It is an amenable number.

42542365436 is a deficient number, since it is larger than the sum of its proper divisors (31906774084).

42542365436 is a wasteful number, since it uses less digits than its factorization.

42542365436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635591363 (or 10635591361 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 44.

The spelling of 42542365436 in words is "forty-two billion, five hundred forty-two million, three hundred sixty-five thousand, four hundred thirty-six".