27825369773 has 2 divisors, whose sum is σ = 27825369774. Its totient is φ = 27825369772.

The previous prime is 27825369757. The next prime is 27825369779. The reversal of 27825369773 is 37796352872.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18150286729 + 9675083044 = 134723^2 + 98362^2 .

It is a cyclic number.

It is not a de Polignac number, because 27825369773 - 2⁴ = 27825369757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27825369779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13912684886 + 13912684887.

It is an arithmetic number, because the mean of its divisors is an integer number (13912684887).

Almost surely, 2^27825369773 is an apocalyptic number.

It is an amenable number.

27825369773 is a deficient number, since it is larger than the sum of its proper divisors (1).

27825369773 is an equidigital number, since it uses as much as digits as its factorization.

27825369773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26671680, while the sum is 59.

The spelling of 27825369773 in words is "twenty-seven billion, eight hundred twenty-five million, three hundred sixty-nine thousand, seven hundred seventy-three".