275050327781 has 2 divisors, whose sum is σ = 275050327782. Its totient is φ = 275050327780.

The previous prime is 275050327759. The next prime is 275050327819. The reversal of 275050327781 is 187723050572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274188376900 + 861950881 = 523630^2 + 29359^2 .

It is a cyclic number.

It is not a de Polignac number, because 275050327781 - 2¹⁸ = 275050065637 is a prime.

It is a super-2 number, since 2×275050327781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275050327081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137525163890 + 137525163891.

It is an arithmetic number, because the mean of its divisors is an integer number (137525163891).

Almost surely, 2^275050327781 is an apocalyptic number.

It is an amenable number.

275050327781 is a deficient number, since it is larger than the sum of its proper divisors (1).

275050327781 is an equidigital number, since it uses as much as digits as its factorization.

275050327781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 275050327781 in words is "two hundred seventy-five billion, fifty million, three hundred twenty-seven thousand, seven hundred eighty-one".