27881183696867 has 2 divisors, whose sum is σ = 27881183696868. Its totient is φ = 27881183696866.

The previous prime is 27881183696759. The next prime is 27881183696879. The reversal of 27881183696867 is 76869638118872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27881183696867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27881183696791 and 27881183696800.

It is not a weakly prime, because it can be changed into another prime (27881183696887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13940591848433 + 13940591848434.

It is an arithmetic number, because the mean of its divisors is an integer number (13940591848434).

Almost surely, 2^{27881183696867} is an apocalyptic number.

27881183696867 is a deficient number, since it is larger than the sum of its proper divisors (1).

27881183696867 is an equidigital number, since it uses as much as digits as its factorization.

27881183696867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2341011456, while the sum is 80.

The spelling of 27881183696867 in words is "twenty-seven trillion, eight hundred eighty-one billion, one hundred eighty-three million, six hundred ninety-six thousand, eight hundred sixty-seven".