27012660481 has 2 divisors, whose sum is σ = 27012660482. Its totient is φ = 27012660480.

The previous prime is 27012660473. The next prime is 27012660511. The reversal of 27012660481 is 18406621072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24707124225 + 2305536256 = 157185^2 + 48016^2 .

It is a cyclic number.

It is not a de Polignac number, because 27012660481 - 2³ = 27012660473 is a prime.

It is a super-2 number, since 2×27012660481² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27012660481.

It is not a weakly prime, because it can be changed into another prime (27012660461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13506330240 + 13506330241.

It is an arithmetic number, because the mean of its divisors is an integer number (13506330241).

Almost surely, 2^27012660481 is an apocalyptic number.

It is an amenable number.

27012660481 is a deficient number, since it is larger than the sum of its proper divisors (1).

27012660481 is an equidigital number, since it uses as much as digits as its factorization.

27012660481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 27012660481 in words is "twenty-seven billion, twelve million, six hundred sixty thousand, four hundred eighty-one".