42437473423 has 2 divisors, whose sum is σ = 42437473424. Its totient is φ = 42437473422.

The previous prime is 42437473411. The next prime is 42437473433. The reversal of 42437473423 is 32437473424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42437473423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42437473423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42437473433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218736711 + 21218736712.

It is an arithmetic number, because the mean of its divisors is an integer number (21218736712).

Almost surely, 2^42437473423 is an apocalyptic number.

42437473423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437473423 is an equidigital number, since it uses as much as digits as its factorization.

42437473423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 43.

Subtracting from 42437473423 its reverse (32437473424), we obtain a palindrome (9999999999).

The spelling of 42437473423 in words is "forty-two billion, four hundred thirty-seven million, four hundred seventy-three thousand, four hundred twenty-three".