111727617671 has 2 divisors, whose sum is σ = 111727617672. Its totient is φ = 111727617670.

The previous prime is 111727617653. The next prime is 111727617679. The reversal of 111727617671 is 176716727111.

It is a strong prime.

It is an emirp because it is prime and its reverse (176716727111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111727617671 - 2¹⁰ = 111727616647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111727617679) 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, 55863808835 + 55863808836.

It is an arithmetic number, because the mean of its divisors is an integer number (55863808836).

Almost surely, 2^111727617671 is an apocalyptic number.

111727617671 is a deficient number, since it is larger than the sum of its proper divisors (1).

111727617671 is an equidigital number, since it uses as much as digits as its factorization.

111727617671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172872, while the sum is 47.

The spelling of 111727617671 in words is "one hundred eleven billion, seven hundred twenty-seven million, six hundred seventeen thousand, six hundred seventy-one".