42567987611 has 2 divisors, whose sum is σ = 42567987612. Its totient is φ = 42567987610.

The previous prime is 42567987593. The next prime is 42567987613. The reversal of 42567987611 is 11678976524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42567987611 - 2⁶ = 42567987547 is a prime.

Together with 42567987613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42567987613) 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, 21283993805 + 21283993806.

It is an arithmetic number, because the mean of its divisors is an integer number (21283993806).

Almost surely, 2^42567987611 is an apocalyptic number.

42567987611 is a deficient number, since it is larger than the sum of its proper divisors (1).

42567987611 is an equidigital number, since it uses as much as digits as its factorization.

42567987611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 56.

The spelling of 42567987611 in words is "forty-two billion, five hundred sixty-seven million, nine hundred eighty-seven thousand, six hundred eleven".