27361543091 has 2 divisors, whose sum is σ = 27361543092. Its totient is φ = 27361543090.

The previous prime is 27361543057. The next prime is 27361543103. The reversal of 27361543091 is 19034516372.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27361543091 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (27361543021) 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, 13680771545 + 13680771546.

It is an arithmetic number, because the mean of its divisors is an integer number (13680771546).

Almost surely, 2^27361543091 is an apocalyptic number.

27361543091 is a deficient number, since it is larger than the sum of its proper divisors (1).

27361543091 is an equidigital number, since it uses as much as digits as its factorization.

27361543091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 27361543091 in words is "twenty-seven billion, three hundred sixty-one million, five hundred forty-three thousand, ninety-one".