275733643481 has 2 divisors, whose sum is σ = 275733643482. Its totient is φ = 275733643480.

The previous prime is 275733643447. The next prime is 275733643487. The reversal of 275733643481 is 184346337572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204453187225 + 71280456256 = 452165^2 + 266984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275733643481 is a prime.

It is a super-2 number, since 2×275733643481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (275733643487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137866821740 + 137866821741.

It is an arithmetic number, because the mean of its divisors is an integer number (137866821741).

Almost surely, 2^275733643481 is an apocalyptic number.

It is an amenable number.

275733643481 is a deficient number, since it is larger than the sum of its proper divisors (1).

275733643481 is an equidigital number, since it uses as much as digits as its factorization.

275733643481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 53.

The spelling of 275733643481 in words is "two hundred seventy-five billion, seven hundred thirty-three million, six hundred forty-three thousand, four hundred eighty-one".