42542363597 has 2 divisors, whose sum is σ = 42542363598. Its totient is φ = 42542363596.

The previous prime is 42542363593. The next prime is 42542363629. The reversal of 42542363597 is 79536324524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24701151556 + 17841212041 = 157166^2 + 133571^2 .

It is a cyclic number.

It is not a de Polignac number, because 42542363597 - 2² = 42542363593 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42542363593) 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 as a sum of consecutive naturals, namely, 21271181798 + 21271181799.

It is an arithmetic number, because the mean of its divisors is an integer number (21271181799).

Almost surely, 2^42542363597 is an apocalyptic number.

It is an amenable number.

42542363597 is a deficient number, since it is larger than the sum of its proper divisors (1).

42542363597 is an equidigital number, since it uses as much as digits as its factorization.

42542363597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 50.

The spelling of 42542363597 in words is "forty-two billion, five hundred forty-two million, three hundred sixty-three thousand, five hundred ninety-seven".