27247000091 has 2 divisors, whose sum is σ = 27247000092. Its totient is φ = 27247000090.

The previous prime is 27247000061. The next prime is 27247000147. The reversal of 27247000091 is 19000074272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27247000091 - 2¹⁴ = 27246983707 is a prime.

It is not a weakly prime, because it can be changed into another prime (27247000021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13623500045 + 13623500046.

It is an arithmetic number, because the mean of its divisors is an integer number (13623500046).

Almost surely, 2^27247000091 is an apocalyptic number.

27247000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

27247000091 is an equidigital number, since it uses as much as digits as its factorization.

27247000091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The spelling of 27247000091 in words is "twenty-seven billion, two hundred forty-seven million, ninety-one", and thus it is an aban number.