27657675247 has 2 divisors, whose sum is σ = 27657675248. Its totient is φ = 27657675246.

The previous prime is 27657675239. The next prime is 27657675313. The reversal of 27657675247 is 74257675672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27657675247 - 2³ = 27657675239 is a prime.

It is a super-2 number, since 2×27657675247² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27657675191 and 27657675200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27657675847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13828837623 + 13828837624.

It is an arithmetic number, because the mean of its divisors is an integer number (13828837624).

Almost surely, 2^27657675247 is an apocalyptic number.

27657675247 is a deficient number, since it is larger than the sum of its proper divisors (1).

27657675247 is an equidigital number, since it uses as much as digits as its factorization.

27657675247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34574400, while the sum is 58.

The spelling of 27657675247 in words is "twenty-seven billion, six hundred fifty-seven million, six hundred seventy-five thousand, two hundred forty-seven".