27328759849 has 2 divisors, whose sum is σ = 27328759850. Its totient is φ = 27328759848.

The previous prime is 27328759823. The next prime is 27328759933. The reversal of 27328759849 is 94895782372.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23771472400 + 3557287449 = 154180^2 + 59643^2 .

It is a cyclic number.

It is not a de Polignac number, because 27328759849 - 2⁵ = 27328759817 is a prime.

It is a super-2 number, since 2×27328759849² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27328753849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13664379924 + 13664379925.

It is an arithmetic number, because the mean of its divisors is an integer number (13664379925).

Almost surely, 2^27328759849 is an apocalyptic number.

It is an amenable number.

27328759849 is a deficient number, since it is larger than the sum of its proper divisors (1).

27328759849 is an equidigital number, since it uses as much as digits as its factorization.

27328759849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60963840, while the sum is 64.

The spelling of 27328759849 in words is "twenty-seven billion, three hundred twenty-eight million, seven hundred fifty-nine thousand, eight hundred forty-nine".