27789260488687 has 2 divisors, whose sum is σ = 27789260488688. Its totient is φ = 27789260488686.

The previous prime is 27789260488597. The next prime is 27789260488739. The reversal of 27789260488687 is 78688406298772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27789260488687 - 2³¹ = 27787113005039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27789260488687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27789260488387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13894630244343 + 13894630244344.

It is an arithmetic number, because the mean of its divisors is an integer number (13894630244344).

Almost surely, 2^{27789260488687} is an apocalyptic number.

27789260488687 is a deficient number, since it is larger than the sum of its proper divisors (1).

27789260488687 is an equidigital number, since it uses as much as digits as its factorization.

27789260488687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7283146752, while the sum is 82.

The spelling of 27789260488687 in words is "twenty-seven trillion, seven hundred eighty-nine billion, two hundred sixty million, four hundred eighty-eight thousand, six hundred eighty-seven".