27047420527 has 2 divisors, whose sum is σ = 27047420528. Its totient is φ = 27047420526.

The previous prime is 27047420513. The next prime is 27047420567. The reversal of 27047420527 is 72502474072.

It is an a-pointer prime, because the next prime (27047420567) can be obtained adding 27047420527 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27047420527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27047420527.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27047420507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13523710263 + 13523710264.

It is an arithmetic number, because the mean of its divisors is an integer number (13523710264).

Almost surely, 2^27047420527 is an apocalyptic number.

27047420527 is a deficient number, since it is larger than the sum of its proper divisors (1).

27047420527 is an equidigital number, since it uses as much as digits as its factorization.

27047420527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219520, while the sum is 40.

Adding to 27047420527 its reverse (72502474072), we get a palindrome (99549894599).

The spelling of 27047420527 in words is "twenty-seven billion, forty-seven million, four hundred twenty thousand, five hundred twenty-seven".