27358627889 has 2 divisors, whose sum is σ = 27358627890. Its totient is φ = 27358627888.

The previous prime is 27358627871. The next prime is 27358627897. The reversal of 27358627889 is 98872685372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26343886864 + 1014741025 = 162308^2 + 31855^2 .

It is a cyclic number.

It is not a de Polignac number, because 27358627889 - 2²⁸ = 27090192433 is a prime.

It is a super-3 number, since 3×27358627889³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (27358627859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13679313944 + 13679313945.

It is an arithmetic number, because the mean of its divisors is an integer number (13679313945).

Almost surely, 2^27358627889 is an apocalyptic number.

It is an amenable number.

27358627889 is a deficient number, since it is larger than the sum of its proper divisors (1).

27358627889 is an equidigital number, since it uses as much as digits as its factorization.

27358627889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 65.

The spelling of 27358627889 in words is "twenty-seven billion, three hundred fifty-eight million, six hundred twenty-seven thousand, eight hundred eighty-nine".