27803755247 has 2 divisors, whose sum is σ = 27803755248. Its totient is φ = 27803755246.

The previous prime is 27803755223. The next prime is 27803755297. The reversal of 27803755247 is 74255730872.

It is an a-pointer prime, because the next prime (27803755297) can be obtained adding 27803755247 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27803755247 - 2³⁰ = 26730013423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27803755195 and 27803755204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27803755297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901877623 + 13901877624.

It is an arithmetic number, because the mean of its divisors is an integer number (13901877624).

Almost surely, 2^27803755247 is an apocalyptic number.

27803755247 is a deficient number, since it is larger than the sum of its proper divisors (1).

27803755247 is an equidigital number, since it uses as much as digits as its factorization.

27803755247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3292800, while the sum is 50.

The spelling of 27803755247 in words is "twenty-seven billion, eight hundred three million, seven hundred fifty-five thousand, two hundred forty-seven".