27026047057 has 2 divisors, whose sum is σ = 27026047058. Its totient is φ = 27026047056.

The previous prime is 27026047021. The next prime is 27026047141. The reversal of 27026047057 is 75074062072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26626406976 + 399640081 = 163176^2 + 19991^2 .

It is a cyclic number.

It is not a de Polignac number, because 27026047057 - 2²³ = 27017658449 is a prime.

It is a super-2 number, since 2×27026047057² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27026047957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13513023528 + 13513023529.

It is an arithmetic number, because the mean of its divisors is an integer number (13513023529).

Almost surely, 2^27026047057 is an apocalyptic number.

It is an amenable number.

27026047057 is a deficient number, since it is larger than the sum of its proper divisors (1).

27026047057 is an equidigital number, since it uses as much as digits as its factorization.

27026047057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 40.

The spelling of 27026047057 in words is "twenty-seven billion, twenty-six million, forty-seven thousand, fifty-seven".