27717245527 has 2 divisors, whose sum is σ = 27717245528. Its totient is φ = 27717245526.

The previous prime is 27717245489. The next prime is 27717245531. The reversal of 27717245527 is 72554271772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27717245527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27717245627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13858622763 + 13858622764.

It is an arithmetic number, because the mean of its divisors is an integer number (13858622764).

Almost surely, 2^27717245527 is an apocalyptic number.

27717245527 is a deficient number, since it is larger than the sum of its proper divisors (1).

27717245527 is an equidigital number, since it uses as much as digits as its factorization.

27717245527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920800, while the sum is 49.

The spelling of 27717245527 in words is "twenty-seven billion, seven hundred seventeen million, two hundred forty-five thousand, five hundred twenty-seven".