266049625273 has 2 divisors, whose sum is σ = 266049625274. Its totient is φ = 266049625272.

The previous prime is 266049625267. The next prime is 266049625301. The reversal of 266049625273 is 372526940662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184326824889 + 81722800384 = 429333^2 + 285872^2 .

It is a cyclic number.

It is not a de Polignac number, because 266049625273 - 2⁹ = 266049624761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266049625273.

It is not a weakly prime, because it can be changed into another prime (266049625223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133024812636 + 133024812637.

It is an arithmetic number, because the mean of its divisors is an integer number (133024812637).

Almost surely, 2^266049625273 is an apocalyptic number.

It is an amenable number.

266049625273 is a deficient number, since it is larger than the sum of its proper divisors (1).

266049625273 is an equidigital number, since it uses as much as digits as its factorization.

266049625273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 266049625273 in words is "two hundred sixty-six billion, forty-nine million, six hundred twenty-five thousand, two hundred seventy-three".