275306402881 has 2 divisors, whose sum is σ = 275306402882. Its totient is φ = 275306402880.

The previous prime is 275306402821. The next prime is 275306402909. The reversal of 275306402881 is 188204603572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272191758400 + 3114644481 = 521720^2 + 55809^2 .

It is a cyclic number.

It is not a de Polignac number, because 275306402881 - 2¹¹ = 275306400833 is a prime.

It is a super-2 number, since 2×275306402881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (275306402821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137653201440 + 137653201441.

It is an arithmetic number, because the mean of its divisors is an integer number (137653201441).

Almost surely, 2^275306402881 is an apocalyptic number.

It is an amenable number.

275306402881 is a deficient number, since it is larger than the sum of its proper divisors (1).

275306402881 is an equidigital number, since it uses as much as digits as its factorization.

275306402881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 275306402881 in words is "two hundred seventy-five billion, three hundred six million, four hundred two thousand, eight hundred eighty-one".