27657675313 has 2 divisors, whose sum is σ = 27657675314. Its totient is φ = 27657675312.

The previous prime is 27657675247. The next prime is 27657675361. The reversal of 27657675313 is 31357675672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26280300544 + 1377374769 = 162112^2 + 37113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27657675313 is a prime.

It is not a weakly prime, because it can be changed into another prime (27657675373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13828837656 + 13828837657.

It is an arithmetic number, because the mean of its divisors is an integer number (13828837657).

Almost surely, 2^27657675313 is an apocalyptic number.

It is an amenable number.

27657675313 is a deficient number, since it is larger than the sum of its proper divisors (1).

27657675313 is an equidigital number, since it uses as much as digits as its factorization.

27657675313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5556600, while the sum is 52.

The spelling of 27657675313 in words is "twenty-seven billion, six hundred fifty-seven million, six hundred seventy-five thousand, three hundred thirteen".