27800975467 has 2 divisors, whose sum is σ = 27800975468. Its totient is φ = 27800975466.

The previous prime is 27800975443. The next prime is 27800975473. The reversal of 27800975467 is 76457900872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27800975467 - 2¹¹ = 27800973419 is a prime.

It is not a weakly prime, because it can be changed into another prime (27800975417) 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, 13900487733 + 13900487734.

It is an arithmetic number, because the mean of its divisors is an integer number (13900487734).

Almost surely, 2^27800975467 is an apocalyptic number.

27800975467 is a deficient number, since it is larger than the sum of its proper divisors (1).

27800975467 is an equidigital number, since it uses as much as digits as its factorization.

27800975467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 27800975467 in words is "twenty-seven billion, eight hundred million, nine hundred seventy-five thousand, four hundred sixty-seven".