27986022154859 has 2 divisors, whose sum is σ = 27986022154860. Its totient is φ = 27986022154858.

The previous prime is 27986022154823. The next prime is 27986022154861. The reversal of 27986022154859 is 95845122068972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27986022154859 - 2¹² = 27986022150763 is a prime.

Together with 27986022154861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27986022154879) 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, 13993011077429 + 13993011077430.

It is an arithmetic number, because the mean of its divisors is an integer number (13993011077430).

Almost surely, 2^{27986022154859} is an apocalyptic number.

27986022154859 is a deficient number, since it is larger than the sum of its proper divisors (1).

27986022154859 is an equidigital number, since it uses as much as digits as its factorization.

27986022154859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174182400, while the sum is 68.

The spelling of 27986022154859 in words is "twenty-seven trillion, nine hundred eighty-six billion, twenty-two million, one hundred fifty-four thousand, eight hundred fifty-nine".