42542502331 has 16 divisors (see below), whose sum is σ = 51121103040. Its totient is φ = 34630404480.

The previous prime is 42542502323. The next prime is 42542502337. The reversal of 42542502331 is 13320524524.

It is not a de Polignac number, because 42542502331 - 2³ = 42542502323 is a prime.

It is a super-2 number, since 2×42542502331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42542502293 and 42542502302.

It is not an unprimeable number, because it can be changed into a prime (42542502337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705396 + ... + 1730161.

It is an arithmetic number, because the mean of its divisors is an integer number (3195068940).

Almost surely, 2^42542502331 is an apocalyptic number.

42542502331 is a deficient number, since it is larger than the sum of its proper divisors (8578600709).

42542502331 is a wasteful number, since it uses less digits than its factorization.

42542502331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435654.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 42542502331 in words is "forty-two billion, five hundred forty-two million, five hundred two thousand, three hundred thirty-one".