27806211233 has 2 divisors, whose sum is σ = 27806211234. Its totient is φ = 27806211232.

The previous prime is 27806211229. The next prime is 27806211263. The reversal of 27806211233 is 33211260872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17616721984 + 10189489249 = 132728^2 + 100943^2 .

It is a cyclic number.

It is not a de Polignac number, because 27806211233 - 2² = 27806211229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27806211193 and 27806211202.

It is not a weakly prime, because it can be changed into another prime (27806211263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13903105616 + 13903105617.

It is an arithmetic number, because the mean of its divisors is an integer number (13903105617).

Almost surely, 2^27806211233 is an apocalyptic number.

It is an amenable number.

27806211233 is a deficient number, since it is larger than the sum of its proper divisors (1).

27806211233 is an equidigital number, since it uses as much as digits as its factorization.

27806211233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 27806211233 in words is "twenty-seven billion, eight hundred six million, two hundred eleven thousand, two hundred thirty-three".