27499734064819 has 2 divisors, whose sum is σ = 27499734064820. Its totient is φ = 27499734064818.

The previous prime is 27499734064793. The next prime is 27499734064849. The reversal of 27499734064819 is 91846043799472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27499734064819 - 2⁹ = 27499734064307 is a prime.

It is a super-2 number, since 2×27499734064819² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27499734064849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13749867032409 + 13749867032410.

It is an arithmetic number, because the mean of its divisors is an integer number (13749867032410).

Almost surely, 2^{27499734064819} is an apocalyptic number.

27499734064819 is a deficient number, since it is larger than the sum of its proper divisors (1).

27499734064819 is an equidigital number, since it uses as much as digits as its factorization.

27499734064819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 658409472, while the sum is 73.

The spelling of 27499734064819 in words is "twenty-seven trillion, four hundred ninety-nine billion, seven hundred thirty-four million, sixty-four thousand, eight hundred nineteen".