27746387411 has 2 divisors, whose sum is σ = 27746387412. Its totient is φ = 27746387410.

The previous prime is 27746387381. The next prime is 27746387413. The reversal of 27746387411 is 11478364772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27746387411 is a prime.

It is a super-2 number, since 2×27746387411² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 27746387413, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27746387411.

It is not a weakly prime, because it can be changed into another prime (27746387413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13873193705 + 13873193706.

It is an arithmetic number, because the mean of its divisors is an integer number (13873193706).

Almost surely, 2^27746387411 is an apocalyptic number.

27746387411 is a deficient number, since it is larger than the sum of its proper divisors (1).

27746387411 is an equidigital number, since it uses as much as digits as its factorization.

27746387411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 50.

The spelling of 27746387411 in words is "twenty-seven billion, seven hundred forty-six million, three hundred eighty-seven thousand, four hundred eleven".