27659590249 has 2 divisors, whose sum is σ = 27659590250. Its totient is φ = 27659590248.

The previous prime is 27659590247. The next prime is 27659590267. The reversal of 27659590249 is 94209595672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25017116224 + 2642474025 = 158168^2 + 51405^2 .

It is a cyclic number.

It is not a de Polignac number, because 27659590249 - 2¹ = 27659590247 is a prime.

Together with 27659590247, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 27659590193 and 27659590202.

It is not a weakly prime, because it can be changed into another prime (27659590243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13829795124 + 13829795125.

It is an arithmetic number, because the mean of its divisors is an integer number (13829795125).

Almost surely, 2^27659590249 is an apocalyptic number.

It is an amenable number.

27659590249 is a deficient number, since it is larger than the sum of its proper divisors (1).

27659590249 is an equidigital number, since it uses as much as digits as its factorization.

27659590249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 27659590249 in words is "twenty-seven billion, six hundred fifty-nine million, five hundred ninety thousand, two hundred forty-nine".