27481286843 has 2 divisors, whose sum is σ = 27481286844. Its totient is φ = 27481286842.

The previous prime is 27481286663. The next prime is 27481286851. The reversal of 27481286843 is 34868218472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27481286843 - 2²⁶ = 27414177979 is a prime.

It is a super-2 number, since 2×27481286843² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27481286873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13740643421 + 13740643422.

It is an arithmetic number, because the mean of its divisors is an integer number (13740643422).

Almost surely, 2^27481286843 is an apocalyptic number.

27481286843 is a deficient number, since it is larger than the sum of its proper divisors (1).

27481286843 is an equidigital number, since it uses as much as digits as its factorization.

27481286843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4128768, while the sum is 53.

The spelling of 27481286843 in words is "twenty-seven billion, four hundred eighty-one million, two hundred eighty-six thousand, eight hundred forty-three".