275189443261 has 2 divisors, whose sum is σ = 275189443262. Its totient is φ = 275189443260.

The previous prime is 275189443247. The next prime is 275189443297. The reversal of 275189443261 is 162344981572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231620812900 + 43568630361 = 481270^2 + 208731^2 .

It is a cyclic number.

It is not a de Polignac number, because 275189443261 - 2²³ = 275181054653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275189443199 and 275189443208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275189443861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137594721630 + 137594721631.

It is an arithmetic number, because the mean of its divisors is an integer number (137594721631).

Almost surely, 2^275189443261 is an apocalyptic number.

It is an amenable number.

275189443261 is a deficient number, since it is larger than the sum of its proper divisors (1).

275189443261 is an equidigital number, since it uses as much as digits as its factorization.

275189443261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The spelling of 275189443261 in words is "two hundred seventy-five billion, one hundred eighty-nine million, four hundred forty-three thousand, two hundred sixty-one".