27056013577 has 2 divisors, whose sum is σ = 27056013578. Its totient is φ = 27056013576.

The previous prime is 27056013527. The next prime is 27056013601. The reversal of 27056013577 is 77531065072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17798494921 + 9257518656 = 133411^2 + 96216^2 .

It is a cyclic number.

It is not a de Polignac number, because 27056013577 - 2¹¹ = 27056011529 is a prime.

It is not a weakly prime, because it can be changed into another prime (27056013527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13528006788 + 13528006789.

It is an arithmetic number, because the mean of its divisors is an integer number (13528006789).

Almost surely, 2^27056013577 is an apocalyptic number.

It is an amenable number.

27056013577 is a deficient number, since it is larger than the sum of its proper divisors (1).

27056013577 is an equidigital number, since it uses as much as digits as its factorization.

27056013577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 308700, while the sum is 43.

The spelling of 27056013577 in words is "twenty-seven billion, fifty-six million, thirteen thousand, five hundred seventy-seven".