276742173527257 has 2 divisors, whose sum is σ = 276742173527258. Its totient is φ = 276742173527256.

The previous prime is 276742173527213. The next prime is 276742173527327. The reversal of 276742173527257 is 752725371247672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258421410891081 + 18320762636176 = 16075491^2 + 4280276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276742173527257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 276742173527192 and 276742173527201.

It is not a weakly prime, because it can be changed into another prime (276742173597257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138371086763628 + 138371086763629.

It is an arithmetic number, because the mean of its divisors is an integer number (138371086763629).

Almost surely, 2^{276742173527257} is an apocalyptic number.

It is an amenable number.

276742173527257 is a deficient number, since it is larger than the sum of its proper divisors (1).

276742173527257 is an equidigital number, since it uses as much as digits as its factorization.

276742173527257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 484041600, while the sum is 67.

The spelling of 276742173527257 in words is "two hundred seventy-six trillion, seven hundred forty-two billion, one hundred seventy-three million, five hundred twenty-seven thousand, two hundred fifty-seven".