27075663257 has 2 divisors, whose sum is σ = 27075663258. Its totient is φ = 27075663256.

The previous prime is 27075663229. The next prime is 27075663287. The reversal of 27075663257 is 75236657072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26746639936 + 329023321 = 163544^2 + 18139^2 .

It is a cyclic number.

It is not a de Polignac number, because 27075663257 - 2¹⁰ = 27075662233 is a prime.

It is not a weakly prime, because it can be changed into another prime (27075663287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13537831628 + 13537831629.

It is an arithmetic number, because the mean of its divisors is an integer number (13537831629).

Almost surely, 2^27075663257 is an apocalyptic number.

It is an amenable number.

27075663257 is a deficient number, since it is larger than the sum of its proper divisors (1).

27075663257 is an equidigital number, since it uses as much as digits as its factorization.

27075663257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3704400, while the sum is 50.

The spelling of 27075663257 in words is "twenty-seven billion, seventy-five million, six hundred sixty-three thousand, two hundred fifty-seven".