27015746677 has 2 divisors, whose sum is σ = 27015746678. Its totient is φ = 27015746676.

The previous prime is 27015746629. The next prime is 27015746713. The reversal of 27015746677 is 77664751072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15393613041 + 11622133636 = 124071^2 + 107806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27015746677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27015746477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13507873338 + 13507873339.

It is an arithmetic number, because the mean of its divisors is an integer number (13507873339).

Almost surely, 2^27015746677 is an apocalyptic number.

It is an amenable number.

27015746677 is a deficient number, since it is larger than the sum of its proper divisors (1).

27015746677 is an equidigital number, since it uses as much as digits as its factorization.

27015746677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3457440, while the sum is 52.

The spelling of 27015746677 in words is "twenty-seven billion, fifteen million, seven hundred forty-six thousand, six hundred seventy-seven".