27990496511 has 2 divisors, whose sum is σ = 27990496512. Its totient is φ = 27990496510.

The previous prime is 27990496493. The next prime is 27990496543. The reversal of 27990496511 is 11569409972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27990496511 - 2¹⁸ = 27990234367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27990496111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13995248255 + 13995248256.

It is an arithmetic number, because the mean of its divisors is an integer number (13995248256).

Almost surely, 2^27990496511 is an apocalyptic number.

27990496511 is a deficient number, since it is larger than the sum of its proper divisors (1).

27990496511 is an equidigital number, since it uses as much as digits as its factorization.

27990496511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 27990496511 in words is "twenty-seven billion, nine hundred ninety million, four hundred ninety-six thousand, five hundred eleven".