263042437513 has 2 divisors, whose sum is σ = 263042437514. Its totient is φ = 263042437512.

The previous prime is 263042437501. The next prime is 263042437591. The reversal of 263042437513 is 315734240362.

263042437513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206954935929 + 56087501584 = 454923^2 + 236828^2 .

It is a cyclic number.

It is not a de Polignac number, because 263042437513 - 2¹⁷ = 263042306441 is a prime.

It is not a weakly prime, because it can be changed into another prime (263042437213) 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, 131521218756 + 131521218757.

It is an arithmetic number, because the mean of its divisors is an integer number (131521218757).

Almost surely, 2^263042437513 is an apocalyptic number.

It is an amenable number.

263042437513 is a deficient number, since it is larger than the sum of its proper divisors (1).

263042437513 is an equidigital number, since it uses as much as digits as its factorization.

263042437513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 40.

Adding to 263042437513 its reverse (315734240362), we get a palindrome (578776677875).

The spelling of 263042437513 in words is "two hundred sixty-three billion, forty-two million, four hundred thirty-seven thousand, five hundred thirteen".