275406325588991 has 2 divisors, whose sum is σ = 275406325588992. Its totient is φ = 275406325588990.

The previous prime is 275406325588987. The next prime is 275406325589023. The reversal of 275406325588991 is 199885523604572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275406325588991 - 2² = 275406325588987 is a prime.

It is a super-3 number, since 3×275406325588991³ (a number of 44 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275406325588981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137703162794495 + 137703162794496.

It is an arithmetic number, because the mean of its divisors is an integer number (137703162794496).

It is a 1-persistent number, because it is pandigital, but 2⋅275406325588991 = 550812651177982 is not.

Almost surely, 2^{275406325588991} is an apocalyptic number.

275406325588991 is a deficient number, since it is larger than the sum of its proper divisors (1).

275406325588991 is an equidigital number, since it uses as much as digits as its factorization.

275406325588991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368000, while the sum is 74.

The spelling of 275406325588991 in words is "two hundred seventy-five trillion, four hundred six billion, three hundred twenty-five million, five hundred eighty-eight thousand, nine hundred ninety-one".