27745060249 has 2 divisors, whose sum is σ = 27745060250. Its totient is φ = 27745060248.

The previous prime is 27745060199. The next prime is 27745060279. The reversal of 27745060249 is 94206054772.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15458446224 + 12286614025 = 124332^2 + 110845^2 .

It is a cyclic number.

It is not a de Polignac number, because 27745060249 - 2²⁷ = 27610842521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27745060199 and 27745060208.

It is not a weakly prime, because it can be changed into another prime (27745060279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13872530124 + 13872530125.

It is an arithmetic number, because the mean of its divisors is an integer number (13872530125).

Almost surely, 2^27745060249 is an apocalyptic number.

It is an amenable number.

27745060249 is a deficient number, since it is larger than the sum of its proper divisors (1).

27745060249 is an equidigital number, since it uses as much as digits as its factorization.

27745060249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 27745060249 in words is "twenty-seven billion, seven hundred forty-five million, sixty thousand, two hundred forty-nine".