27803244461 has 2 divisors, whose sum is σ = 27803244462. Its totient is φ = 27803244460.

The previous prime is 27803244451. The next prime is 27803244523. The reversal of 27803244461 is 16444230872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15880788361 + 11922456100 = 126019^2 + 109190^2 .

It is a cyclic number.

It is not a de Polignac number, because 27803244461 - 2³⁰ = 26729502637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27803244421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901622230 + 13901622231.

It is an arithmetic number, because the mean of its divisors is an integer number (13901622231).

Almost surely, 2^27803244461 is an apocalyptic number.

It is an amenable number.

27803244461 is a deficient number, since it is larger than the sum of its proper divisors (1).

27803244461 is an equidigital number, since it uses as much as digits as its factorization.

27803244461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 27803244461 in words is "twenty-seven billion, eight hundred three million, two hundred forty-four thousand, four hundred sixty-one".