27400856111 has 2 divisors, whose sum is σ = 27400856112. Its totient is φ = 27400856110.

The previous prime is 27400856107. The next prime is 27400856177. The reversal of 27400856111 is 11165800472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27400856111 - 2² = 27400856107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27400856101) 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, 13700428055 + 13700428056.

It is an arithmetic number, because the mean of its divisors is an integer number (13700428056).

Almost surely, 2^27400856111 is an apocalyptic number.

27400856111 is a deficient number, since it is larger than the sum of its proper divisors (1).

27400856111 is an equidigital number, since it uses as much as digits as its factorization.

27400856111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 27400856111 in words is "twenty-seven billion, four hundred million, eight hundred fifty-six thousand, one hundred eleven".