27088378511 has 2 divisors, whose sum is σ = 27088378512. Its totient is φ = 27088378510.

The previous prime is 27088378483. The next prime is 27088378517. The reversal of 27088378511 is 11587388072.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27088378511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27088378511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27088378517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13544189255 + 13544189256.

It is an arithmetic number, because the mean of its divisors is an integer number (13544189256).

Almost surely, 2^27088378511 is an apocalyptic number.

27088378511 is a deficient number, since it is larger than the sum of its proper divisors (1).

27088378511 is an equidigital number, since it uses as much as digits as its factorization.

27088378511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 752640, while the sum is 50.

The spelling of 27088378511 in words is "twenty-seven billion, eighty-eight million, three hundred seventy-eight thousand, five hundred eleven".