27056174081 has 2 divisors, whose sum is σ = 27056174082. Its totient is φ = 27056174080.

The previous prime is 27056174069. The next prime is 27056174263. The reversal of 27056174081 is 18047165072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17450410000 + 9605764081 = 132100^2 + 98009^2 .

It is a cyclic number.

It is not a de Polignac number, because 27056174081 - 2¹⁴ = 27056157697 is a prime.

It is a super-2 number, since 2×27056174081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27056114081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13528087040 + 13528087041.

It is an arithmetic number, because the mean of its divisors is an integer number (13528087041).

Almost surely, 2^27056174081 is an apocalyptic number.

It is an amenable number.

27056174081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27056174081 is an equidigital number, since it uses as much as digits as its factorization.

27056174081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

Subtracting from 27056174081 its reverse (18047165072), we obtain a palindrome (9009009009).

The spelling of 27056174081 in words is "twenty-seven billion, fifty-six million, one hundred seventy-four thousand, eighty-one".