27803244451 has 2 divisors, whose sum is σ = 27803244452. Its totient is φ = 27803244450.

The previous prime is 27803244449. The next prime is 27803244461. The reversal of 27803244451 is 15444230872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27803244451 - 2¹ = 27803244449 is a prime.

Together with 27803244449, it forms a pair of twin primes.

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, 13901622225 + 13901622226.

It is an arithmetic number, because the mean of its divisors is an integer number (13901622226).

Almost surely, 2^27803244451 is an apocalyptic number.

27803244451 is a deficient number, since it is larger than the sum of its proper divisors (1).

27803244451 is an equidigital number, since it uses as much as digits as its factorization.

27803244451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 27803244451 in words is "twenty-seven billion, eight hundred three million, two hundred forty-four thousand, four hundred fifty-one".