43542404263 has 2 divisors, whose sum is σ = 43542404264. Its totient is φ = 43542404262.

The previous prime is 43542404201. The next prime is 43542404287. The reversal of 43542404263 is 36240424534.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43542404263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43542404663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21771202131 + 21771202132.

It is an arithmetic number, because the mean of its divisors is an integer number (21771202132).

Almost surely, 2^43542404263 is an apocalyptic number.

43542404263 is a deficient number, since it is larger than the sum of its proper divisors (1).

43542404263 is an equidigital number, since it uses as much as digits as its factorization.

43542404263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 43542404263 its reverse (36240424534), we get a palindrome (79782828797).

The spelling of 43542404263 in words is "forty-three billion, five hundred forty-two million, four hundred four thousand, two hundred sixty-three".