13558281010987 has 2 divisors, whose sum is σ = 13558281010988. Its totient is φ = 13558281010986.

The previous prime is 13558281010823. The next prime is 13558281011027. The reversal of 13558281010987 is 78901018285531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13558281010987 is a prime.

It is not a weakly prime, because it can be changed into another prime (13558281050987) 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, 6779140505493 + 6779140505494.

It is an arithmetic number, because the mean of its divisors is an integer number (6779140505494).

Almost surely, 2^{13558281010987} is an apocalyptic number.

13558281010987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13558281010987 is an equidigital number, since it uses as much as digits as its factorization.

13558281010987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 58.

The spelling of 13558281010987 in words is "thirteen trillion, five hundred fifty-eight billion, two hundred eighty-one million, ten thousand, nine hundred eighty-seven".