27048742691 has 2 divisors, whose sum is σ = 27048742692. Its totient is φ = 27048742690.

The previous prime is 27048742657. The next prime is 27048742717. The reversal of 27048742691 is 19624784072.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27048742691 - 2²² = 27044548387 is a prime.

It is not a weakly prime, because it can be changed into another prime (27048742621) 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, 13524371345 + 13524371346.

It is an arithmetic number, because the mean of its divisors is an integer number (13524371346).

Almost surely, 2^27048742691 is an apocalyptic number.

27048742691 is a deficient number, since it is larger than the sum of its proper divisors (1).

27048742691 is an equidigital number, since it uses as much as digits as its factorization.

27048742691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 27048742691 in words is "twenty-seven billion, forty-eight million, seven hundred forty-two thousand, six hundred ninety-one".