13287772563787 has 2 divisors, whose sum is σ = 13287772563788. Its totient is φ = 13287772563786.

The previous prime is 13287772563781. The next prime is 13287772563797. The reversal of 13287772563787 is 78736527778231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13287772563787 - 2¹⁹ = 13287772039499 is a prime.

It is not a weakly prime, because it can be changed into another prime (13287772563781) 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, 6643886281893 + 6643886281894.

It is an arithmetic number, because the mean of its divisors is an integer number (6643886281894).

Almost surely, 2^{13287772563787} is an apocalyptic number.

13287772563787 is a deficient number, since it is larger than the sum of its proper divisors (1).

13287772563787 is an equidigital number, since it uses as much as digits as its factorization.

13287772563787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161699840, while the sum is 73.

The spelling of 13287772563787 in words is "thirteen trillion, two hundred eighty-seven billion, seven hundred seventy-two million, five hundred sixty-three thousand, seven hundred eighty-seven".