27855862196471 has 2 divisors, whose sum is σ = 27855862196472. Its totient is φ = 27855862196470.

The previous prime is 27855862196443. The next prime is 27855862196483. The reversal of 27855862196471 is 17469126855872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27855862196471 is a prime.

It is a super-3 number, since 3×27855862196471³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27855862196395 and 27855862196404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27855862195471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13927931098235 + 13927931098236.

It is an arithmetic number, because the mean of its divisors is an integer number (13927931098236).

Almost surely, 2^{27855862196471} is an apocalyptic number.

27855862196471 is a deficient number, since it is larger than the sum of its proper divisors (1).

27855862196471 is an equidigital number, since it uses as much as digits as its factorization.

27855862196471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 406425600, while the sum is 71.

The spelling of 27855862196471 in words is "twenty-seven trillion, eight hundred fifty-five billion, eight hundred sixty-two million, one hundred ninety-six thousand, four hundred seventy-one".