27750577733 has 2 divisors, whose sum is σ = 27750577734. Its totient is φ = 27750577732.

The previous prime is 27750577721. The next prime is 27750577781. The reversal of 27750577733 is 33777505772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19366062244 + 8384515489 = 139162^2 + 91567^2 .

It is a cyclic number.

It is not a de Polignac number, because 27750577733 - 2⁶ = 27750577669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27750577703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13875288866 + 13875288867.

It is an arithmetic number, because the mean of its divisors is an integer number (13875288867).

Almost surely, 2^27750577733 is an apocalyptic number.

It is an amenable number.

27750577733 is a deficient number, since it is larger than the sum of its proper divisors (1).

27750577733 is an equidigital number, since it uses as much as digits as its factorization.

27750577733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7563150, while the sum is 53.

The spelling of 27750577733 in words is "twenty-seven billion, seven hundred fifty million, five hundred seventy-seven thousand, seven hundred thirty-three".