276138843805273 has 2 divisors, whose sum is σ = 276138843805274. Its totient is φ = 276138843805272.

The previous prime is 276138843805247. The next prime is 276138843805361. The reversal of 276138843805273 is 372508348831672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184939246982169 + 91199596823104 = 13599237^2 + 9549848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276138843805273 is a prime.

It is a super-2 number, since 2×276138843805273² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 276138843805199 and 276138843805208.

It is not a weakly prime, because it can be changed into another prime (276138843805213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138069421902636 + 138069421902637.

It is an arithmetic number, because the mean of its divisors is an integer number (138069421902637).

Almost surely, 2^{276138843805273} is an apocalyptic number.

It is an amenable number.

276138843805273 is a deficient number, since it is larger than the sum of its proper divisors (1).

276138843805273 is an equidigital number, since it uses as much as digits as its factorization.

276138843805273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 325140480, while the sum is 67.

The spelling of 276138843805273 in words is "two hundred seventy-six trillion, one hundred thirty-eight billion, eight hundred forty-three million, eight hundred five thousand, two hundred seventy-three".